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second Periodical Test review

Total questions: 100

Worksheet time: 22mins

Name
Class
Date
1.

In physics, what is impulse ?

a)

The change in velocity of an object over time

b)

The change in momentum of an object over time

c)

The force applied to an object over distance

d)

The acceleration of an object over a given interval

2.

Which of the following is a vector quantity related to impulse?

a)

Force

b)

Energy

c)

Power

d)

Work

3.

Which between the two has greater momentum: sleeping lion or walking ant?

a)
b)
4.

Which of the following imparts the greatest impulse on the crate in each of their turn to move it?

a)

Jon who pushes it with a force of 150 N for 5 seconds

b)

Jaime who pushes it using one hand with a force of 100 N within 6 seconds

c)

Gregor who pushes it with a force of 300 N for 3 seconds

5.

The momentum of an object depends upon the object's ___________&_____________.

a)

mass and energy

b)

mass and veloctiy

c)

mass and speed

d)

size and shape

6.

The impulse-momentum theorem states that

a)

Athe impulse on an object is less than the change in momentum it causes

b)

the impulse on an object is greater than the change in momentum it causes 

c)

the impulse on an object is equal to the change in momentum it causes 

d)

the force on a moving object is equal to the magnitude of the impulse.

7.

A runner has a momentum of 670 kg m/s and is travelling at a velocity of 9 m/s. What is his mass?

a)

6030 kg

b)

0.0134 kg

c)

74.4 kg

d)

80 kg

8.

A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s.

Calculate the impulse on the ball.

a)

1 N·s

b)

6 N·s

c)

None of these

d)

66 N·s

9.

Which takes more force  to catch, a bowling ball or a ping pong ball?

a)

bowling ball because it has more momentum

b)

bowling ball because it has less momentum

c)

both require the same amount of force when catching

d)

ping pong ball because it has more momentum

10.

How can a tennis ball and a bowling ball have the same momentum?

a)

one is moving backwards

b)

have the same speed

c)

they can't

d)

have different speeds

11.

A 2 kg cart has a momentum of 16 kg m/s. What is its velocity?

a)

32 m/s

b)

8 m/s

c)

0.125 m/s

d)

18 m/s

12.

Which of the following situations shows that work is done?

a)

teacher sitting on a chair

b)

book resting on a table

c)

key chain hanging from a bag

d)

a ball being rolled on the floor

13.

In which of the following situations is work NOT done?

a)

pushing a cart in a store

b)

shooting a basketball

c)

holding a 20 pound box above the floor

d)

running a mile

14.

If you push a cart with a force of 60 N for 2 m. How much work have you done?

a)

120 J

b)

30 J

c)

120 N

d)

30 N

15.

It took 500 Newtons of force to push a car 4 meters. How much work was done?

a)

2000 J

b)

125 J

c)

0.008 J

d)

500 J

16.

If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?

a)

272 m

b)

17 m

c)

4.05 m

d)

272 cm

17.

Two people push on a wall with 100 N. The wall doesn’t move. How much work is done?

a)

100 J

b)

100 N

c)

0 J

d)

0 N

18.

We can only say that there is work done when,

a)

There is a displacement and the force causes that displacement.

b)

There is no displacement but there is force existing.

c)

There is neither displacement nor force.

d)

There is displacement even with or without force.

19.

What is the formula for work?

a)

W= Fd

b)

W=F/d

c)

W= md

d)

W=d/f

20.

What is the unit of work?

a)

Newton

b)

Joule

c)

Watt

d)

meter

21.

Which picture shows more power?

a)
b)
22.

In physics, power is the rate at which _________ is used.

a)

Current

b)

Speed

c)

Energy

d)

Force

23.

To solve for power, we use the formula: Power = Work divided by _________.

a)

Velocity

b)

Force

c)

Distance

d)

Time

24.

Standard unit for Power

a)

Ampere

b)

Newton

c)

Joule

d)

Watt

25.

How much power is expended if it takes 10 J of work to climb up the stairs in 5 seconds

a)

2 W

b)

5 W

c)

150 W

d)

200 W

26.

Watt is equal to one ____________

a)

joule per second

b)

meter per second

c)

ampere per second

d)

farad per second

27.

A crane lifts an 8-m long steel girder weighing 2600 N up 15 m off the ground. The crane did ___ of work.

a)

0 J

b)

39000 J

c)

20800 J

d)

2600 J

28.

Which requires more power – a person walking up stairs or a person running up stairs?

a)

walking

b)

running

c)

they require equal power output

d)

no power is required at all

29.
Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?
a)
Chemical to light
b)
Electrical to chemical
c)
Electrical to light
d)
Chemical to electrical
30.
Which of the following devices transforms electrical energy into mechanical energy?
a)
An e-reader
b)
a fan
c)
a manual pencil sharpener
d)
ipod
31.
The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —
a)
solar
b)
light
c)
thermal
d)
mechanical
32.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
33.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
34.
The roller coaster cart has the most gravitational potential energy at position-
a)
W
b)
X
c)
Y
d)
Z
35.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
36.
A swing has potential energy if _____________.
a)
it is in motion
b)
it is swinging backward
c)
it is sitting still
d)
it is spinning
37.
Which of the following is a fossil fuel?
a)
Wind
b)
Coal
c)
Solar
d)
Biomass
38.
 Energy from the sun is known as......... 
a)
hydroelectric energy
b)
geothermal energy
c)
solar energy
d)
wind energy
39.

___________________ stops the transfer of heat.

a)

Insulation

b)

Air conditioners

c)

Heating systems

d)

Windows

40.

Energy is:

a)

The ability to do work

b)

The amount of power

c)

Movement

d)

Causing things to happen

41.

Potential energy is:

a)

A type of kinetic energy

b)

A fuel

c)

Associated with movement

d)

Stored energy

42.

Kinetic energy is equal to:

a)

0.5 x newtons x height

b)

0.5 x mass x velocity(squared)

c)

0.5 x mass x velocity

d)

0.5 x mass x acceleration(squared)

43.

Potential energy is equal to:

a)

mass(squared) x gravity x height

b)

mass x gravity x height

c)

mass x pressure x gravity

d)

mass x weight x energy

44.

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

45.

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

46.

Which of the following possesses sound energy?

a)

Guitar strings being plucked

b)

Mr Broadway talking about sound energy

c)

Solar panels generating electricity

d)

A machine in an assembly line

47.

What kind of wave are sound waves?

a)

transverse

b)

longitudinal

c)

latitudinal

d)

parallel

48.
In which  medium will sound travel fastest?
a)
air
b)
water
c)
glass
d)
salt water
49.
Sound is caused by....
a)
molecules
b)
vibrations
c)
people
d)
space
50.
When we hear an echo it is because... 
a)
sound travels slowly 
b)
sound is reflected off an object
c)
sound travels quickly 
d)
Sound travels backwards
51.

What do you call a series of rarefactions and compressions

a)

amplitude

b)

sound wave

c)

decibel

d)

pitch

52.
Why is sound able to travel faster through a solid than a gas?
a)
Gas molecules are packed tightly.
b)
Sound does not travel faster through a solid than a gas.
c)
Solid molecules are packed tightly.
d)
Gas molecules move slowly.
53.
When does sound refract?
a)
When it travels in a vacuum.
b)
When it moves through cold air.
c)
When it travels in only one medium.
d)
When it moves from one medium to another.
54.

Which of the following is related to the pitch of the sound?

a)

Refraction

b)

Speed

c)

Loudness

d)

Frequency

55.

What type of sound characterized as a very low sound, almost cannot be heard, but whose vibration can be felt?

a)

Infrasonic

b)

Sonic

c)

Audio

d)

Ultrasonic

56.

What type of sound is described as beyond human capabilities.

a)

Infrasonic

b)

Ultrasonic

c)

Sonic

d)

Audio

57.

Which of the following can be used to magnify sound?

a)

Decibels (dB)

b)

Frequency Range

c)

Amplifier

d)

Range

58.

Which of the following depends on the medium by which sound is being transferred.

a)

Speed

b)

Frequency

c)

Loudness

d)

Refraction

59.
What is frequency?
a)
the number of vibrations per second
b)
how high or low a sound is
c)
the loudness or softness of a sound
d)
the back and forth movement of matter
60.

Which of these sound waves has the highest frequency?

a)

b)

c)

61.

Which sound wave has the lowest pitch?

a)
b)
c)
62.

What part of the wave are the arrows pointing to?

a)

Crest

b)

Trough

c)

Amplitude

d)

Origin

63.

4. Why do we see a flash of lightning first before we hear the roaring of thunder?

a)

Sound travels at a speed of 300,000,000 m/s. while light travels at a speed of 330 m/s.

b)

Sound travels at a speed of 330 m/s while light travels at a speed of 3,000,000 m/s.

c)

Sound travels at a speed of 330 m/s while light travels at a speed of 300,000,000 m/s.

d)

Because imagine dragons thunder, feel the thunder.

64.

Which electromagnetic radiation has the highest penetrating ability and is emitted only during high-energy nuclear reaction?

a)

gamma rays

b)

microwave radiation

c)

radio waves

d)

x-rays

65.

Which is true about electromagnetic waves?

a)

All travel at the same speed.

b)

All have the same frequency.

c)

All have the same wavelength

d)

All transport energy but not momentum

66.

Which of the following do EM waves transport?

a)

electric charge

b)

energy

c)

frequency

d)

wavelength

67.

The waves with the longest wavelengths in the electromagnetic spectrum

a)

Infrared rays

b)

gamma rays

c)

radio waves

d)

X-rays

68.

What makes electromagnetic waves different from mechanical waves?

a)

no medium required

b)

medium needed

c)

light -catalyzed

d)

space exclusive

69.

Which type of EM waves has the shortest wavelength?

a)

radio wave

b)

visible light

c)

gamma ray

d)

ultraviolet

70.

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

a)

increases

b)

decreases

c)

remains constant

d)

diminishes to zero

71.

EM waves used in checking the authenticity of bank notes

a)

microwave

b)

infrared

c)

ultraviolet

d)

X-ray

72.

Utilized in treating cancer, the radiotherapy

a)

gamma ray

b)

x-ray

c)

visible light

d)

microwave

73.

Helpful in military night vision goggles

a)

radio wave

b)

microwave

c)

infrared

d)

light

74.

Used in medical technology specifically in generating images of lungs and bone fractures

a)

infrared

b)

visible light

c)

ultraviolet

d)

x-ray

75.

EM waves in which our eyes are sensitive to

a)

infrared

b)

visible light

c)

ultraviolet

d)

gamma ray

76.

Which is the most energetic among the electromagnetic waves?

a)

gamma rays

b)

microwaves

c)

radio waves

d)

x-rays

77.

In radio broadcasting, AM stands for ___________.

a)

after morning

b)

amplitude modeling

c)

amplitude modulation

d)

ante meridian

78.

Which of the following ranges of frequency in radio waves is used by FM radios?

a)

low frequency

b)

medium frequency

c)

ultra-high frequency

d)

very high frequency

79.

Which does not belong to the group?

a)

infrared wave

b)

microwaves

c)

sound waves

d)

x-rays

80.

Which of the following is an ionizing radiation?

a)

microwave

b)

radio wave

c)

visible light

d)

x-ray

81.

Which of the following electromagnetic waves is used to check baggage in airports as part of security measures?

a)

gamma rays

b)

microwaves

c)

radio waves

d)

x-rays

82.

What is the speed of light in a vacuum?

a)

3×1083\times10^8 m/s

b)

3×10−83\times10^{-8} m/s

c)

6.63×10346.63\times10^{34} J s

d)

6.63×10−346.63\times10^{-34} J s

83.

What is the frequency of green light that has a wavelength of 500 nm?

a)

6×10−36\times10^{-3}  Hz

b)

6×1056\times10^5  Hz

c)

6×10146\times10^{14}  Hz

d)

6×10−166\times10^{-16}  HZ

84.

What is the wavelength of a microwave transmission at 1,575.42 MHz?

a)

1.9×10−141.9\times10^{-14}  m

b)

1.9×10−91.9\times10^{-9}  m

c)

0.190.19  m

d)

19001900  m

85.

How does an electric field and magnetic field oscillate with each other?

a)

Perpendicular with each other.

b)

Parallel with each other.

c)

Align with each other.

d)

Back and forth with each other.

86.

A material that can transmit light waves.

a)

opaque

b)

transparent

c)

translucent

87.

The bending of light as it travels from one medium to another medium of different densities.

a)

reflection

b)

refraction

c)

interference

d)

diffraction

88.

The spreading of light as it enters the opening of a barrier.

a)

reflection

b)

refraction

c)

interference

d)

diffraction

89.

The process of separating the colors of white light using a prism.

a)

reflection

b)

interference

c)

dispersion

d)

diffraction

90.

The third color of white light if they are arranged from longest to shortest wavelength.

a)

blue

b)

green

c)

yellow

d)

indigo

91.

What does the law of reflection say?

a)

The angle of incidence equals the angle of reflection.

b)

All waves incident on a mirror are reflected.

c)

Waves incident on a mirror are partially reflected.

d)

The angle a ray is reflected from a mirror is random.

92.
What number represents the wavelength?
a)
1
b)
2
c)
3
d)
4
93.
Which of these lists the EM waves from Highest to lowest frequency?
a)
Radio -  Micro - Gamma - Visible light - UV - Xrays - Infrared - Xrays
b)
Radio - Micro - Infrared - Visible light - UV - X - Gamma waves
c)
Gamma - Xray - UV - Visible light - Infrared - Micro - radio
94.

These objects emit light from within

a)

Luminous

b)

Transparent

c)

opaque

d)

Illuminated

95.

This type of object when hit by light, absorbed light and the rest reflects off.

a)

Opaque

b)

Transparent

c)

Translucent

d)

Intensity

96.

It is the line at a right angle to the reflecting surface to the point of incident

a)

incident ray

b)

reflected ray

c)

normal

d)

angle of incidence

97.

This image is usually formed when we use a plane mirror.

a)

Real image

b)

Virtual Image

c)

Opposite

d)

Inverted

98.

It is an object or device that reflects light.

a)

Mirror

b)

Lens

c)

Diverging

d)

converging

99.

It is the horizontal axis points in ray diagramming

a)

Principal axis

b)

focal point

c)

focal length

d)

center of curvature

100.

Name the mirror that curves inwards

a)

plane mirror

b)

convex mirror

c)

concave mirror

d)

spherical mirror

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