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Year 10 Physics revision

Total questions: 86

Worksheet time: 14hrs 20mins

Name
Class
Date
1.

Energy is:

a)

The ability to do work

b)

The amount of power

c)

Movement

d)

Causing things to happen

2.

Kinetic energy is

a)

Stored energy

b)

Force acting on objects

c)

Associated with movement

d)

Measured in speed

3.

Potential energy is:

a)

A type of kinetic energy

b)

A fuel

c)

Associated with movement

d)

Stored energy

4.

What type of energy is in this picture?

a)

Kinetic energy

b)

Rubber energy

c)

Elastic energy

d)

Stored energy

5.

When glow sticks snap, they produce a glow. What energy transformation takes place?

a)

Thermal to light

b)

Light to radiant

c)

Potential to heat

d)

Chemical to light

6.

Energy is neither created or destroyed, it is simply transferred between objects or transformed into

(a)  

7.

Work is:

a)

The amount of energy used in creating a force

b)

The amount of energy used in moving an object

c)

The amount of energy used in creating power

d)

Annoying

8.

The following scenario relates to a rollercoaster:

When at the top of a hill, a cart has _________ energy, as it travels down the track, it has _______ energy.

a)

Kinetic, potential

b)

potential, generational

c)

potential, kinetic

d)

kinetic, exhilirating

9.

What type of energy transformation would occur when a piece of wood is burnt?

a)

Electrical energy is released as radiant energy

b)

Mechanical energy is stored as chemical energy

c)

Stored chemical energy is released as thermal energy

d)

No transformation occurs

10.

What energy transformation would occur in a toaster?

a)

Electrical to thermal

b)

Thermal to mechanical

c)

Radiant to electrical

d)

Solar to thermal

11.

If the speed of an object increases, what also increases?

a)

Potential energy

b)

Kinetic energy

12.

Select the following which demonstrate a change from kinetic energy to potential energy?

a)

A sled sliding up a hill

b)

A ball that is thrown into the air

c)

A car driving down a hill

d)

A rubber band being stretched

13.

Which of the following is not a type of energy?

a)

Mechanical

b)

Gravitational

c)

Electrical

d)

A wave

14.

Energy released when atoms split or join together is called

a)

Gravitational

b)

Nuclear

c)

Elastic

d)

Chemical

15.

Energy made available through the flow of electric current is called...

a)

Sound

b)

Elastic

c)

Radiant

d)

Electrical

16.

heat always transfers from

a)

right to left

b)

left to right

c)

hot to cold

d)

cold to hot

17.
What happens to particles as they heat up?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
18.

The energy conversion in a flashlight is _____________ ->_____________-> light + thermal energy

a)

chemical energy > electrical energy

b)

electrical energy > chemical energy

c)

Neuclear energy > chemical energy

d)

gravitational potential energy > kinetic energy

19.

what is the law of conservation of energy

a)

energy can be created but cannot be destroyed

b)

energy cannot be created or destroyed, but it can be transformed

c)

energy can be destroyed but not created

d)

energy cannot be created destroyed or transformed

20.

what is the energy conversion in a hydroelectric power station?

a)

gravitational potential energy > kinetic energy > electrical energy

b)

kinetic energy > thermal energy > electrical energy

c)

gravitational potential energy > thermal energy > electrical energy

d)

thermal energy > kinetic energy > electrical energy

21.

a machine that is 20% efficient has 50 J of energy put into it. What is the output of energy?

a)

15J

b)

10J

c)

10.0J

d)

10

22.

what is the conversion happening in a solar panel?

a)

light energy > electrical energy

b)

solar energy > electrical energy

c)

kinetic energy > electrical energy

d)

nuclear energy > electrical energy

23.

what is the output energy for a motor that is 75.0% efficient and had 500J of energy put into it?

a)

375 J

b)

375 %

c)

375

d)

3.8 x 10^2 J

24.

What is this diagram called?

a)

Stankey Diagram

b)

Sankey Diagram

c)

Sankay Diagram

d)

Samkay Diagram

25.
Where does most of the energy go in this transformation.
a)
Electrical energy
b)
Light
c)
Heat
d)
other
26.

A washing machine uses 250J of electrical energy to produce 125J of useful energy. How efficient is it?

a)

5%

b)

50%

c)

55%

d)

100%

27.
In energy transformations, "wasted energy" usually takes what form?
a)
heat
b)
chemical energy
c)
light
d)
sound waves
28.

Total energy = 200J
Useful energy = 20J

Workout the efficiency of this lightbulb.
efficiency = useful enegytotal energy in ×100efficiency\ =\ \frac{useful\ enegy}{total\ energy\ in}\ \times100  

a)

100%

b)

80%

c)

40%

d)

10%

29.

A kettle uses 100J of electrical energy to produce 7J of sound energy and 93J of thermal energy. How efficient is the kettle?

a)

100%

b)

7%

c)

93%

d)

95%

30.

Calculate the useful energy output for a toaster when total energy input is 51230J and it has an efficiency of 60%.

(a)  

31.

Calculate the useful energy output for a buzzer when total energy input is 8700 J and it has an efficiency of 3%.

(a)  

32.

Calculate the efficiency of a toy car which was supplied with 80000 J of input energy and generated two different forms of energy, including 12800 J of thermal energy.

(a)  

33.
dark colored surfaces _________ radiation
a)
reflect 
b)
absorb
34.

What type of heat transfer takes place when you touch a warm mug of hot chocolate?

a)

Radiation

b)

Convection

c)

Conduction

d)

None of the above

35.

Conduction requires

a)

Electricity

b)

the electromagnetic spectrum and particles

c)

air or water flow

d)

direct contact

36.

If you walk barefoot on hot asphalt, energy is transferred by which process?

a)

Convection

b)

Radiation

c)

Conduction

d)

Reflection

37.
The earth receives heat energy from the sun by _______________, which is the transfer of energy as electromagnetic waves?
a)
radiation
b)
convection
c)
conduction
d)
greenhouse effect
38.

When air is heated, its volume ____________.

a)

increases

b)

decreases

c)

remains the same

39.

When air is heated, its density ___________.

a)

increases

b)

decreases

c)

remains the same

40.

Which of the following is an application of convection?

a)

The movement of heat through a metal pan to the food.

b)

The use of ice box to keep drinks cool.

c)

The sea breeze that blows from sea to land.

d)

The use of wool blanket to keep the body warm.

41.
Waves are a transfer of what?
a)
Heat
b)
Light
c)
Energy
d)
Food
42.

What is the number of complete waves passing a fixed point in a given amount of time?

a)

Amplitude

b)

Intensity

c)

Wavelength

d)

Frequency

43.

What kind of wave is pictured below?

a)

compressional wave

b)

transverse wave

c)

sound wave

d)

mechanical wave

44.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
45.
What property of the wave is represented by the letter "B"?
a)
amplitude
b)
crest
c)
trough
d)
wavelength
46.
Which wave is pictured?
a)
Transverse
b)
Longitudinal
c)
Both
d)
Neither
47.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
48.
Which wave in the diagram has the greatest wavelength?
a)
1
b)
2
c)
3
d)
4
49.
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
50.
Which of the following can sound travel through?
a)
solid
b)
liquid
c)
gas
d)
all of the above
51.

What does sound waves travel the fastest through?

a)

Liquids

b)

Gases

c)

Solids

52.
High Amplitude =__________________
a)
Louder sounds
b)
Quieter Sounds
53.

Electromagnetic waves vary in

a)

the speed they travel in a vacuum

b)

wavelength and frequency

c)

the way they reflect

d)

the orientation of their electric and magnetic fields

54.

Infrared rays have a shorter wavelength than

a)

Ultraviolet ray

b)

X-rays

c)

gamma rays

d)

radio waves

55.

The full range of frequencies of electromagnetic radiation is called

a)

visible light

b)

the electromagnetic spectrum

c)

radio waves

d)

invisible radiation

56.

The waves with the longest wavelengths in the electromagnetic spectrum

a)

Infrared rays

b)

gamma rays

c)

radio waves

d)

X-rays

57.

The visible light spectrum ranges between

a)

radio waves and X-rays

b)

infrared rays and ultraviolet rays

c)

television waves and infrared rays

d)

ultraviolet rays and gamma rays

58.

What does a wave carry?

a)

boats

b)

energy

c)

matter

d)

water

59.

The human ear can detect frequencies between:

a)

20 and 20000 Hz

b)

100 and 200 Hz

c)

1 and 100 Hz

d)

20 and 30 Hz

60.

The ________ ear collects sounds waves and transmits them to the ________ ear, which contains auditory ossicles.

a)

superficial; deep

b)

outer; middle

c)

inner; middl

d)

middle; inne

e)

outer; inner

61.

When an external force bends the stereocilia of the inner ear hair cells,

a)

the hair cells are temporarily damaged.

b)

dizziness results.

c)

an electrical impulse is generated

d)

the force is converted into mechanical energy

e)

the cells become unresponsive.

62.
When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the_________.
a)
outer ear and ear canal
b)
inner ear
c)
tiny hairs
d)
three small bones in the middle ear
63.

When light travels through two different materials it bends and changes

direction because the speed of light changes. This is called __________

a)

Reflection

b)

Refraction

64.

When light hits an opaque object it changes direction

and bounces off. This is called _________

a)

Refraction

b)

Reflection

65.

Light appears white or transparent, but it is actually

made up of several different colours.

Is the given statement true or false?

a)

True

b)

False

66.

The _________ is the hole in the centre of the iris. Light enters the eye through this hole.

a)

pupil

b)

optic nerve

c)

lens

d)

retina

67.

3. Red from the color spectrum has the longest wavelength.

a)

TRUE

b)

FALSE

68.

4. The color violet has the highest energy and frequency.

a)

TRUE

b)

FALSE

69.

Meaning of Translucent

a)

Absorbs all light and makes a shadow

b)

Allows light to pass and scatters it

c)

Light can pass straight through

70.

What is this

a)

opaque

b)

Translucent

c)

Transparent

71.
Which color reflects the least light?
a)
Black
b)
White 
c)
Blue
d)
Red
72.

True or False: Light has to travel through a medium.

a)

True

b)

False

73.
Which image correctly shows how light would interact with the t-shirt and shorts?
a)
A
b)
B
c)
C
d)
D
74.

The muscular diaphragm that controls the size of the pupil is ---------------

a)

cornea

b)

ciliary muscles

c)

Iris

d)

retina

75.

The black opening between the aqueous humour and the lens is called --------------

a)

retina

b)

iris

c)

cornea

d)

pupil

76.

What organ does the word "optic" refer to?

a)

ear

b)

heart

c)

eye

d)

nose

77.

The covering over the front of the eye is the...

a)

cornea

b)

optic nerve

c)

retina

d)

blind spot

78.

The clear, flexible lump shaped like a squashed marble is the...

(a)  

79.

A car travels 100km. The journey takes two hours. The highest speed of the car is 80km/ h, and the lowest speed is 40km/ h. What is the average speed for the journey?

a)

40km/ h

b)

50km/ h

c)

60km/ h

d)

120km/ h

80.

An ice crystal falls vertically from a cloud. What happens to the acceleration of the ice crystal as it falls?

a)

It decreases because of air resistance.

b)

It decreases because of gravity.

c)

It increases because of air resistance.

d)

It increases because of gravity.

81.

A car travels at an average speed of 60 km / h for 15 minutes. How far does the car travel in 15 minutes?

a)

4.0 km

b)

15 km

c)

240 km

d)

900 km

82.

A train begins a journey from a station and travels 60 km in a time of 20 minutes. What is the average speed of the train?

a)

3.0 m / s

b)

5.0 m / s

c)

50 m / s

d)

60 m / s

83.

The velocity of an object increases from 30 m / s to 50 m / s in 5.0 seconds.

What is the average acceleration of the object?

a)

0.10 m / s2

b)

0.25 m / s2

c)

4.0 m / s2

d)

10 m / s2

84.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
85.
A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?
a)
Balanced Forces, Constant Speed
b)
Balanced Forces, Acceleration
c)
Unbalanced Forces, Constant Speed
d)
Unbalanced Forces, Acceleration
86.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right

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