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Untitled Quiz

Total questions: 225

Worksheet time: 4hrs 0mins

Name
Class
Date
1.

select two correct answers that show:

Average speed?

a)

s = d/t

b)

v = s/t

c)

speed = distance/time

d)

velocity = speed/time

2.

Acceleration?

a)

a = (v-u)/t

b)

d = s/t

c)

v = s/t

d)

F= m/a

3.

v = Δϰ/Δt?

a)

average speed

b)

force needed

c)

average velocity

d)

acceleration

4.

Which formulae shows the relationship between Force, mass and acceleration?

a)

W = mxg

b)

F = mxa

c)

p=mxv

d)

ρ=mxV

5.

Which formulae shows the rate in change of mometum?

a)

F= mxa

b)

F= mxv - mxu / t

c)

F= mxg

d)

F= Fxχ

6.

Formula for Power?

a)

ΔE = Fxd

b)

KE = 1/2mxv2

c)

W = ΔE/t

d)

GPE = mxgxh

7.

ΔE = Fxd?

a)

work = force x distance

b)

Power = Work/ time

c)

Pressure = height x density x gravity

d)

Kinetic energy = 1/2 mass x velocity²

8.

Which is the correct formula for energy efficiency?

a)

Efficiency = total input energy / useful energy output x 100

b)

Efficiency = total input energy / useful energy output / 100

c)

Efficiency = total input energy / useful energy output / 100

d)

Efficiency = useful energy output / total input energy. x100

9.

Select the two that show Refractive index of a material

a)

Refractive index = speed of light in vacuum x speed of light in material

b)

Refractive index = speed of light in vacuum / speed of light in material

c)

n = v1 / v2

d)

n = v1 x v2

10.

Select the two that show the relationship between wave speed, frequency and wavelength

a)

c = f x λ

b)

Wave speed = frequency x wavelength

c)

Wave speed = frequency / wavelength

d)

c = f / λ

11.

Two formulae that show the relationship between Current, charge and time

a)

Current = charge x time

b)

current = charge / time

c)

I = Q x t

d)

I = Q / t

12.

Which will calculate the Power (W) in a circuit?

a)

V = I x R

b)

P = I x V

c)

ΔE = I x V x t

d)

I = Q / t

13.

Which is the correct formula for Energy Transferred in a circuit?

a)

ΔE = I x V x t

b)

ΔE = I / V x t

c)

ΔE = I x V / t

d)

ΔE = I x V

14.

Is this..........

a)

Alpha decay

b)

Beta decay

15.

Is this ......

a)

Alpha decay

b)

Beta decay

16.

Which formulae shows Hooke's Law?

a)

F= mg

b)

F= ma

c)

F = kx

d)

GPE = mgh

17.

What does the relationship between mass, gravity and height show?

a)

Resistance in a circuit

b)

Current in a circuit

c)

Gravitational Potential Energy

d)

Extension of a spring

18.

What is the unit of Work?

a)

Newtons

b)

Joules

c)

Metres

d)

Kg

19.

What is the relationship between moment, force and distance? SELECT TWO CORRECT ANSWERS

a)

M = F x d

b)

M = F / d

c)

d = M x F

d)

F = M/d

20.

What do ohms measure?

a)

Current

b)

potential difference

c)

resistance

d)

power

21.

The units of frequency are...

a)

metres

b)

seconds

c)

Hertz

d)

degrees

22.

Light is an example of a transverse wave

a)

True

b)

False

23.

Sound is an example of a transverse wave

a)

True

b)

False

24.

Which of the following statements describes the period of a wave?

a)

Number of waves per second

b)

Distance from crest to crest

c)

Distance from resting position to top of the wave

d)

Time taken to produce one wave

25.

A microwave has a frequency of 300MHz. What is the wavelength of these waves?

a)

1000 m

b)

100 m

c)

10 m

d)

1 m

26.

The period of a wave is 0.1 s. What is the frequency of this wave?

a)

0.1 Hz

b)

1 Hz

c)

10 Hz

d)

100 Hz

27.

The lowest frequency form of visible light is...

a)

Red

b)

Yellow

c)

Green

d)

Violet

28.

The correct order of the EM spectrum is...

a)

R M IR UV V X G

b)

G X UV V M R

c)

R M IR V UV G

d)

R M IR V UV X G

29.

One use of radio waves is...

a)

Broadcasting and communications

b)

Heating

c)

Observing internal structure of objects

d)

Sterilising food and medical equipment

30.

The following image demonstrates...

a)

Reflection

b)

Refraction

c)

Interference

d)

Diffraction

31.

θ1 =35°, θ2=25°\theta1\ =35\degree,\ \theta2=25\degree  What is the refractive index, n, of water?

a)

1.37

b)

1.36

c)

1.35

d)

1.34

32.

20 waves pass a point in 5 s. How is the frequency of these waves?

a)

100 Hz

b)

20 Hz

c)

5 Hz

d)

4 Hz

33.

All waves can be reflected and refracted.

a)

True

b)

False

34.

The critical angle in the diagram is 43 degrees. What is the angle of refraction at the critical angle?

a)

Less than 43

b)

Equal to 43

c)

More than 43 but less than 90

d)

Equal to 90 degrees

35.

The critical angle of a block is 45 degrees. What is the refractive index of this block?

a)

1.39

b)

1.40

c)

1.41

d)

1.42

36.

An example of scalar magnitude is _____.

a)

velocity

b)

mass

c)

acceleration

d)

force

37.

Which statement describes a scalar?

a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
38.
Find the distance Sara walks from A to B,  B to C then C to D?
a)
11m
b)
3m
c)
5m
d)

8m

39.

Speed in a specific direction is called _____.

a)

velocity

b)

motion

c)

position

d)

displacement

40.

Is this a scalar quantity or a vector quantity?

A deer running 15 meters per second due west.

a)
Scalar
b)
Vector
41.

Is this a scalar quantity or a vector quantity?

Wind blowing at 20 m/s.

a)
Scalar
b)
Vector
42.
The _______ of two or more vectors is the sum of the vectors.
a)
components
b)
scalar
c)
resultant
d)
magnitude
43.
Which of the following quantities are vectors?
a)
speed, velocity, acceleration
b)
velocity, acceleration, force
c)
force, acceleration, mass
d)
length, mass, time
44.
Which of these is not a vector quantity? 
a)
displacement 
b)
time
c)
velocity 
d)
acceleration
45.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
46.

The students are arguing over the differences between speed and velocity. One student says, “Speed is a vector because it describes how fast an object traveling. Velocity is a scalar because it tells how fast and what direction an object is traveling.” Which of the following statements is correct?

a)

The students' understanding of all four terms (speed, velocity, scalar, and vector) is correct.

b)

The students' understanding of all four terms (speed, velocity, scalar, and vector) is incorrect.

c)

The students' understanding of speed and velocity is incorrect but their

understanding of scalar and vector is correct.

d)

The students’ understanding of speed and velocity is correct but their understanding of scalar and vector is incorrect.

47.

How do scalars and vectors differ?

a)

scalers have units

b)

scalers have direction

c)

vectors have units

d)

vectors have direction

48.

7. For winter, a duck flies 10 m/s due to south against a gust of wind with a speed 2.5 m/s. What is the resultant velocity of the duck?

a)

7.5 m/s, north

b)

12.5 m/s, south

c)

7.5 m/s, south

d)

12.5 m/s, north

49.

What is the resultant force?

a)

40 N left

b)

0 N Balalnced

c)

400 N right

d)

40 N right

50.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
51.

What is the resultant/ net force?

a)

400 N Up

b)

400 N Down

c)

- 400 N Down

d)

800 N Down

52.

What is the resultant force?

a)

17 N, Left

b)

6N, Right

c)

None of the above

d)

11N, Left

53.
What is the net force?
a)
5.5 N left
b)
5.5 N right
c)
2.5 N left
d)
2.5 N right
54.

Sound waves of frequency 2.0kHz travel through a substance at a speed of 800m/s. What is the wavelength of the waves?

a)

0.40m

b)

2.5m

c)

400m

d)

1600m

55.

The frequency of a wave is doubled. The speed of the wave does not change. What happens to the wavelength of the wave?

a)

It becomes four times as large.

b)

It does not change.

c)

It doubles.

d)

It halves.

56.

What is the number of wavefronts per second that pass a fixed point?

a)

the amplitude of the wave

b)

the frequency of the wave

c)

the speed of the wave

d)

the wavelength of thewave

57.

What is the frequency of a wave?

a)

the distance that a wavefront travels every second

b)

the distance from one wavefront to the next

c)

the number of wavefronts produced per second

d)

the time taken for a wavefront to pass a certain point

58.

Light enters a glass block at an angle of incidence of 46°. The light refracts at an angle of refraction of 26°. What is the refractive index of the glass?

a)

0.57

b)

0.61

c)

1.64

d)

1.77

59.

A plane mirror is fitted to a wall. Which statement about the image formed by the mirror is correct?

a)

The image is real.

b)

The image is left to right (laterally inverted).

c)

The image is smaller than the object.

d)

The image is upside down.

60.

Which group contains only electromagnetic waves?

a)

light waves, radio waves, γ-rays

b)

light waves, radio waves, sound waves

c)

light waves, sound waves, γ-rays

d)

radio waves, sound waves, γ-rays

61.

How do infra-red waves differ from ultraviolet waves?

a)

Infra-red waves are longitudinal.

b)

Infra-red waves have a lower speed in vacuo (in a vacuum).

c)

Infra-red waves have lower frequencies.

d)

Infra-red waves have smaller wavelengths.

62.

Which list shows electromagnetic waves in order of increasing frequency?

a)

visible light, X-rays, γ-rays

b)

visible light, γ-rays, X-rays

c)

X-rays, γ-rays, visible light

d)

γ-rays, X-rays, visible light

63.

Which statement about ultraviolet waves is correct?

a)

They are used in television remote controllers.

b)

They can be detected by the human eye.

c)

They travel as longitudinal waves.

d)

They have the same speed in a vacuum as radio waves.

64.

What is the correct equation for refractive index

a)

n = sinr / sini

b)

n = sini / sinr

c)

c = sini / sinr

d)

Sinc = sini / sinr

65.

What is the correct equation for acceleration

a)

a = (v - u) / t

b)

a = d / t

c)

a = f x m

66.

What is the correct equation linking force mass and acceleration

a)

F = ma

b)

m = Fa

c)

a = Fm

67.

What is the correct equation linking voltage current and resistance

a)

V = IR

b)

R = VI

c)

I = VR

68.

What is the correct equation linking charge current and time

a)

Q = It

b)

I = Qt

c)

t = QI

69.

What is the correct equation linking density mass and volume

a)

d = m / v

b)

d = m x v

c)

d = v / m

70.

What is the correct equation for gravitational potential energy

a)

m x g x h

b)

m x g / h

c)

m x h / g

71.

What is the correct equation for kinetic energy

a)

1/2 x m x v2

b)

m x v2

c)

1 / 2 x v x m2

72.

What is the correct equation linking speed of a wave frequency and wavelength

a)

v = f x λ\lambda

b)

v = f / λ\lambda

c)

v = λ\lambda / f

73.

What is the correct equation for basic pressure 

a)

p = F / A

b)

p =  F x A

c)

p = A / F

74.

How do you find the number of neutrons in an element

a)

Mass number - atomic number

b)

Atomic number - mass number

c)

Mass number / atomic number

75.

What is the correct equation for electrical power

a)

P = I x V

b)

P = V / I

c)

P = I / V

76.
Who wins the tug of war with what net force?
a)
The person on the left with 20 N
b)
The person on the left with 80 N
c)
The people on the right with 20 N
d)
The people on the right with 100 N
77.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

78.

What is the unit to MEASURE force?

a)

Kilogram

b)

Meter

c)

Pounds

d)

Newton

79.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
80.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
81.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
82.
Jupiter has about 317 times more mass than Earth. What can you infer from this fact? 
a)
That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.
b)
That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.
c)
That Jupiter’s and Earth’s gravitational forces are equal.
d)
Mass has no effect on the gravitational force between two objects
83.
This type of force resist motion between two surfaces that are pressed together
a)
contact
b)
gravity
c)
friction
84.

If both forces are going in the same direction you should______ those forces

a)

Add

b)

Subtract

c)

Divide

d)

Multiply

85.

When forces are going in the opposite direction of each other you should do what do find the net force

a)

Subtract

b)

Add

c)

Divide

d)

Multiply

86.

Which is the unit of current?

a)

volts

b)

amps

c)

watts

d)

joules

87.

Which is the unit of voltage?

a)

volts

b)

amps

c)

watts

d)

joules

88.

Complete the sentence: The ring mains consist of three wires: live, neutral and

a)

Mars

b)

ground

c)

earth

d)

mains

89.

Complete the sentence: The role of the neutral wire in a mains circuit is

a)

to carry current from the power station to your home.

b)

to provide a path of least resistance to the ground.

c)

to resist all current flow.

d)

to complete the circuit so that current can flow.

90.

Complete the sentence: The role of the earth wire in a mains circuit is

a)

to protect the user should the appliance develop a fault.

b)

to carry current from the power station to your home.

c)

to resist the flow of current.

d)

to provide an alternating current.

91.

Which of the following is an insulator used in plugs?

a)

copper wiring

b)

brass pins

c)

plastic casing

d)

fixing screws

92.

Where should a switch be placed in a mains circuit?

a)

connected to the earth wire

b)

connected to the live wire

c)

connected to the neutral wire

d)

anywhere in the circuit

93.

Wires in a heating element are said to have high resistance. Why is this?

a)

All the energy carried by the current is delivered to the appliance.

b)

Energy is transferred to the wires as the current passes through so they heat up.

c)

To prevent current flowing and causing the heating element to break.

d)

None of the above.

94.

Which of the following statements defines the term double insulated?

a)

The appliance is insulated against energy transfer and electricity.

b)

The appliance has an earth wire and a plastic casing.

c)

There are two layers of insulation surrounding the cable.

d)

The casing is made from an insulator such as plastic.

95.

Complete the following sentence: Electrical power is defined as

a)

the energy in the circuit.

b)

the rate of flow of charge.

c)

the rate of energy transfer.

d)

the number of electrons in the circuit.

96.

The majority of plugs contain fuses. Which of the following statements is not correct?

a)

The fuse stops current from flowing through the appliance.

b)

The fuse wire contains a piece of wire that melts if the current becomes too high.

c)

The correct rating on the fuse must be used.

d)

The fuse is fitted in the live wire.

97.

Which equation links power, current and voltage?

a)

power = current/voltage

b)

voltage = current/power

c)

power = current × voltage

d)

current = power × voltage

98.

A 1100 W hairdryer is used on the 230 V mains supply. What is the current supplied?

4 lines
99.

A hairdryer has a curernt of 4.7 A flowing thorugh it. Which fuse would you select for the plug?

4 lines
100.

A 2 kW kettle is used on a 230 V mains supply. It takes 1 minute 30 seconds to boil. What is the energy delivered to the kettle in this time?

4 lines
101.

A 60 W bulb is supplied with 36 000 J of energy. How long is the bulb on for?

4 lines
102.

The mains voltage in the UK is 230 V. What would the current be in a 90 W power cable?

4 lines
103.

A 60 W light bulb is turned on for 4 hours. How much energy does it require?

4 lines
104.

It takes roughly 380 kJ to boil a litre of water. How long will it take a 1.8 kW kettle to boil a litre of water?

4 lines
105.

A power bank can store 5600 J of energy. When connected to a phone of power rating 2.5 W, how long will it take to charge? (Hint: Assume all energy is transferred to the phone.)

4 lines
106.

What is kinetic energy?

a)

moving energy

b)

potential energy

c)

stored energy

d)

renewable energy

107.

The energy in which store increases as a car moves faster?

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Thermal Energy

d)

Kinetic Energy

108.

The energy in which store decreases as a candle burns? 

a)

Chemical energy store

b)

Kinetic energy store

c)

Nuclear energy store

109.

The energy in which store increases as an elastic band is stretched? 

a)

Gravitational Potential

b)

Chemical

c)

Elastic

d)

Kinetic

110.

_________________ is when energy is transferred because a force moves an object through a distance. 

a)

Elastic

b)

Mechanically

c)

By radiation

d)

By heating

111.

_______________ is when energy is transferred due to charge flowing around a circuit. 

a)

Electrically

b)

Kinetic

c)

Mechanically

d)

By radiation

112.

________ is when energy is transferred between areas that have different temperatures. 

a)

By radiation

b)

By heating

c)

Mechanically

d)

Nuclear

113.

When you eat fruits and vegetables, the energy is stored as ...

a)

a. thermal energy

b)

b. food energy

c)

c. electrical energy

d)

d. chemical energy

114.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
115.
a.  Energy stored in the nucleus of an atom.
a)
A. Sound Energy
b)
B. Potential Energy
c)
C. Nuclear Energy
d)
D. Thermal energy
116.

Food, fuels and batteries have energy in this energy store

a)

Chemical

b)

Thermal

c)

Gravitational Potential

d)

Elastic

117.

A stretched rubber band has energy in this energy store

a)

Magnetic

b)

Electrostatic

c)

Elastic

d)

Nuclear

118.

Two negatively charged particles which are close together have energy in this energy store

a)

Electrostatic

b)

Magnetic

c)

Nuclear

d)

Elastic

119.

Energy which is transferred by a force moving an object through a distance

a)

Mechanically

b)

Electrically

c)

By Radiation

d)

By Heating

120.

Energy which is transferred by charges moving due to a potential difference (voltage)

a)

Mechanically

b)

Electrically

c)

By Radiation

d)

By Heating

121.

Shooting an arrow from a bow converts ____ into kinetic energy.

a)

Elastic potential energy

b)

Chemical energy

c)

Gravitational potential energy

d)

Thermal energy

122.

A ____ converts chemical energy into kinetic energy?

a)
b)
c)
d)
123.

The correct unit for wavelength is:

a)

Hz

b)

S

c)

m

d)

cm

124.

The distance between two troughs in a wave is:

a)

frequency

b)

wavelength

c)

equilibrium

d)

period

125.

A substance (like solid, liquid or gas) that the energy of a wave can travel through

a)

amplitude

b)

compression

c)

medium

d)

frequency

126.

The area of a longitudinal wave where the particles are crowded together.

a)

compression

b)

crest

c)

transverse

d)

medium

127.

The correct unit for wavelength is:

a)

Hz

b)

S

c)

m

d)

cm

128.

The distance between two troughs in a wave is:

a)

frequency

b)

wavelength

c)

equilibrium

d)

period

129.

The highest point on a wave.

a)

frequency

b)

compression

c)

trough

d)

crest

130.
What type of wave is this?
a)
Longitudinal
b)
Transverse
131.
Waves are a transfer of what?
a)
Heat
b)
Light
c)
Energy
d)
Food
132.

What is frequency measured in?

a)

Milliseconds

b)

Miles

c)

Hertz

d)

Kilograms

133.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
134.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
135.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
136.
What types of waves carry energy at a right angle or perpendicular to the direction of the energy flow?
a)
Longitudinal waves
b)
Transverse waves
c)
Sound waves
d)
P-waves
137.
Sound is an example of which type of wave?
a)
Transverse
b)
Longitudinal
c)
Both
d)
Neither
138.
 A wave has frequency of 50 Hz and a wavelength of 10 m. What is the speed of the wave?
a)
500 m/s
b)
50 m/s
c)
5 m/s
d)
0.5 m/s
139.
A wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave?
a)
34 m/s
b)
3400 Hz
c)
3400 m/s
d)
34 Hz
140.
 A wave has frequency of 5 Hz and a speed of 25 m/s. What is the wavelength of the wave?
a)
25 m
b)
125 m
c)
5 m
d)
25 m/s
141.
What is the speed of a 20 Hz with a 4m wavelength?
a)
0.2 m/s
b)
5 m/s
c)
80 m/s
d)
320 m/s
142.

The frequency of a wave is 3.3 Hz. If the wavelength is 7.4 m, how fast is the wave moving?

a)

2.24 m/s

b)

24.4 m/s

c)

0.45 m/s

d)

0.24 m/s

143.

speed(v) =16 m/s

frequency=4 Hz

wavelength ( λ\lambda )= ?

a)

4 m

b)

20 m

c)

12 m

d)

64 m

144.

a)

A

b)

B

c)

C

d)

D

145.
a)

A

b)

B

c)

C

d)

D

146.
a)

A

b)

B

c)

C

d)

D

147.
a)

A

b)

B

c)

C

d)

D

148.
a)

A

b)

B

c)

C

d)

D

149.
a)

A

b)

B

c)

C

d)

D

150.
a)

A

b)

B

c)

C

d)

D

151.
a)

A

b)

B

c)

C

d)

D

152.
a)

A

b)

B

c)

C

d)

D

153.
a)

A

b)

B

c)

C

d)

D

154.
a)

A

b)

B

c)

C

d)

D

155.
a)

A

b)

B

c)

C

d)

D

156.
a)

A

b)

B

c)

C

d)

D

157.
a)

A

b)

B

c)

C

d)

D

158.
a)

A

b)

B

c)

C

d)

D

159.
a)

A

b)

B

c)

C

d)

D

160.
a)

A

b)

B

c)

C

d)

D

161.
a)

A

b)

B

c)

C

d)

D

162.
a)

A

b)

B

c)

C

d)

D

163.
a)

A

b)

B

c)

C

d)

D

164.
a)

A

b)

B

c)

C

d)

D

165.
a)

A

b)

B

c)

C

d)

D

166.
a)

A

b)

B

c)

C

d)

D

167.
a)

A

b)

B

c)

C

d)

D

168.

A device that converts mechanical energy into electrical energy

a)

A. electric generator

b)

B. electric motor

c)

C. electromagnetic induction

d)

D. electric meter

169.

The strongest parts of the magnet are ...

a)

fronts

b)

backs

c)

poles

d)

middle

170.

The area around a magnet is called the .....

a)

attraction zone

b)

work area

c)

magnetic field

d)

hot zone

171.

When running a current through a wire, what do the blue lines represent?

a)

The wire spinning

b)

A magnetic field that was created

c)

Electrons leaving

d)

Electricity

172.
A coil of wire with an electric current in it is called a(n)
a)
A. transformer.
b)
B. electric generator.
c)
C. electric motor.
d)
D. solenoid.
173.

What would happen with the magnets in the picture above?

a)

They would repel

b)

Nothing

c)

They would attract

d)

They would repel and then attract

174.
A magnet can move in a coil of wire to produce electricity in which system?
a)
Generator
b)
Motor
c)
Magnet
d)
Transformer
175.

What is the shape of the magnetic field around a current-carrying solenoid?

a)

Circular

b)

Straight

c)

Spiral

d)

Irregular

176.
A moving magnetic field causes current to flow is called...
a)
Electromagnetic Induction
b)
Magnetism
c)
North Pole
d)
Generator
177.
A device that converts electrical energy into mechanical energy
a)
A. electromagnet
b)
B. electromagnetic induction
c)
C. electric motor
d)
D. electromagnetism
178.
British scientist who discovered that a changing magnetic field can produce an electric current.
a)
Hans Christian Oersted
b)
Michael Faraday
c)
Thomas Edison
d)
Troy Nasworthy
179.

Motors are devices that convert _____ energy into _____ energy.

a)

chemical; mechanical

b)

mechanical; electrical

c)

electrical; mechanical

d)

potential; kinetic

180.
Generators are devices that convert _____ energy into _____ energy.
a)
chemical; mechanical
b)
mechanical; electrical
c)
electrical; mechanical
d)
potential; kinetic
181.

Electric current is measured in ____________.

a)

Newtons (N)

b)

Amperes (A)

c)

Hertz (Hz)

d)

Volts (V)

182.
___ Law says that the Induced current is proportional to the change of magnetic flux 
a)
Lenz'
b)
Faraday's
c)
Ampere's
183.
The diagram shows a ray of light from one point on a lamp striking a plane mirror. The image of the point on the lamp formed by the mirror is 
a)
at P and is real.
b)
at P and is virtual.
c)
at R and is real.
d)
at R and is virtual. 
184.
A semi-circular block is made from a plastic. A ray of light passes through it at the angles shown. 
 To two decimal places, what is the refractive index of the plastic?
a)
1.25
b)
1.41
c)
1.51
d)
1.61 
185.

 What is the angle of refraction at the critical angle?

a)

Less than 43

b)

Equal to 43

c)

More than 43 but less than 90

d)

Equal to 90 degrees

186.
Section B1a
Given that the angle of incidence = 30 degrees
a. Draw a ray diagram, labelling clearly the normal, incident ray, angle of incidence, reflected ray and angle of reflection accurately.
Which is the correct diagam? 
a)
A
b)
B
c)
C
d)
D
187.

If a capital letter R is seen in an ordinary mirror, what does it look like?

a)

A

b)

B

c)

C

d)

D

188.

When light passes from air to water, what happens to the speed of the light?

a)

speeds up

b)

slows down

c)

stays the same

189.
A ray of light passes through a window. Which path does it take? 
a)
A
b)
B
c)
C
d)
D
190.
The diagram shows the image of a clock in a plane mirror. What time is shown?
a)
02:25 
b)
02:35 
c)
09:25 
d)
09:35 
191.
 A parallel beam of light falls on a converging lens. Which diagram shows what happens to the beam of light? 
a)
A
b)
B
c)
C
d)
D
192.
A man sees a stone at the bottom of a pool of water. Which path could be taken by light from the stone to the man? 
a)
A
b)
B
c)
C
d)
D
193.
Which colour, red or blue, has the higher frequency and which has the longer wavelength? 
a)
higher frequency: blue
longer wavelength: blue
b)
higher frequency: blue
longer wavelength: red
c)
higher frequency: red
longer wavelength: blue
d)
higher frequency: red
longer wavelength: red
194.
The ray of light that strikes a reflecting surface is called ________.
a)
incident ray
b)
reflected ray
c)
normal ray
d)
none of the above
195.
The angle produced as a source of light bounces off a reflecting surface is called ______.
a)
angle of crookedness
b)
angle of reflection
c)
angle of incidence
d)
angle of bounce
196.

MCQ 011

According to the law of reflection, if i = angle of incidence and r = angle of reflection,

a)

i = r

b)

i > r

c)

r > i

d)

i is not equal to r

197.
The velocity of light in vacuum is _______ m/s
a)
3x108
b)
3x1012
c)
3x106
d)
3x1010
198.
How does light behave as it enters these mediums?
a)
continue its path as straight line.
b)
bends toward the normal
c)
bends away from the normal
d)
reflects
199.
What is this called?
a)
refraction
b)
reflection
c)
reconstroction
d)
retraction
200.

Optical fibre based on the principle of

a)

total internal reflection.

b)

total internal refraction.

c)

diffraction.

d)

interference.

201.

A ray of light travels from air into glass at an incident angle of 30o. Find the angle of refraction. (The refractive index of glass is 1.5)

a)

19.7o

b)

19o

c)

19.5o

d)

19.3o

202.

A ray of light enters air from glass. The angle of incidence is 35o and the angle of refraction is 69o. Find the refractive index of the glass.

a)

1.62

b)

1.63

c)

1.64

d)

1.65

203.

What electromagnetic wave . has . the shortest wavelengths and the highest frequencies?

a)

Gamma Rays

b)

Ultraviolet Rays

c)

Radio Waves

d)

X Rays

204.

What happens to wavelength as the frequency of a wave increases?

a)

increase

b)

stays the same

c)

decreases

d)

becomes faster

205.

The human eye is only capable of seeing which electromagnetic wave?

a)

Infrared Light

b)

Ultraviolet Light

c)

Visible Light

d)

All of the above

206.

What electromagnetic wave do humans emit as heat energy?

a)

infrared light

b)

ultraviolet light

c)

visible light

d)

microwaves

207.

Which of the following is correct in order from lowest to highest energy?

a)

X Rays, Visible Light, Microwave

b)

Ultraviolet, Visible Light, Gamma-Rays

c)

Microwave, Visible Light, Gamma Rays

208.

Which type of electromagnetic wave has the longest wavelength?

a)

visible light

b)

radio waves

c)

ultraviolet waves

d)

gamma rays

209.
Link between wave speed, wave length and frequency
a)
wave speed = wave length x frequency
b)
wave speed = frequency / wave length
c)
wave speed = wave length / frequency
d)
wave speed = wave speed x frequency
e)
wave speed = frequency / wave speed
210.
Link between refractive index (n), angle of incidence (i) and angle of refraction (r)
a)
n = sin i / sin r
b)
n = i / r
c)
n = sin i / r
d)
n = i / sin r
e)
n = sin r / sin i
211.
Link between refractive index (n) and critical angle
a)
n = 1 / sin c
b)
n = sin c / 1
c)
n = 1 / c
d)
n = c / sin 1
e)
n = c
212.

Select the two that show Refractive index of a material

a)

Refractive index = speed of light in vacuum x speed of light in material

b)

Refractive index = speed of light in vacuum / speed of light in material

c)

n = v1 / v2

d)

n = v1 x v2

213.

Dispersion of light referred to as________.

a)

Bending of light

b)

Splitting of light in seven colours

c)

Splitting of light in primary colours

d)

Bouncing back of light

214.

the bending of light

a)

refraction

b)

reflection

c)

absorption

d)

transparent

215.
When an object is placed between the focal point and the convex lens, the image produced is ___.
a)
real, reduced, and inverted
b)
real, enlarged, and inverted
c)
virtual, enlarged, and upright
d)
virtual, reduced, and upright
216.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
217.
This image is.....
a)
inverted and smaller
b)
inverted and larger
c)
not inverted and smaller
d)
not inverted and larger
218.
This image is...
a)
Inverted and smaller
b)
inverted and bigger
c)
not inverted and smaller
d)
not inverted and bigger
219.
a real image...
a)
is produced by virtual rays and can be projected on a screen
b)
is produced by real rays and cannot be projected on a screen
c)
is produced by virtual images and cannot be projected on a screen
d)
is produced by real rays and can be projected on a screen
220.
Which describes a convex lens?
a)
triangular in shape
b)
more transparent in the middle
c)
thicker on the edges than in the middle
d)
thicker in the middle than on the edges
221.

What type of image is formed?

a)

virtual and inverted

b)

virtual and upright

c)

real and upright

d)

real and inverted

222.

What happens above the critical angle?

a)

Diffraction

b)

Reflection

c)

Total Internal Reflection

d)

Refraction

223.

What is the name we give F?

a)

Principle focus

b)

Axis

c)

Focal length

d)

Image

224.

Which words below best describe the image formed?

a)

virtual, inverted, magnified

b)

real, inverted, same size

c)

real, upright, same size

d)

virtual, upright, diminished

225.

Apart from being virtual, what else is this image?

a)

magnified, inverted

b)

magnified, upright

c)

upright, diminished

d)

upright, same size

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