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Semester Review Spring 2024

Total questions: 150

Worksheet time: 6hrs 14mins

Name
Class
Date
1.

In order for an object to be in equilibrium:

a)

All forces must be equal and opposite

b)

One force over powers the others and causes an object to accelerate

c)

All forces face the same direction

d)

All forces on the object converge

2.

What is the difference between weight and mass?

4 lines
3.

If a car goes from 30 m/s to 50 m/s in 2 seconds, what is its acceleration?

a)

40 m/s2

b)

20 m/s2

c)

2 m/s2

d)

0 m/s2

4.

What is the acceleration of a car moving at a constant velocity of 30 m/s?

a)

0 m/s2

b)

30 m/s2

c)

90 m/s2

d)

120 m/s2

5.

Which of the following is Newton's 3rd law?

a)

For every action, there is an equal and opposite reaction.

b)

The acceleration of an object is produced by a net force and is inversely proportional to the mass of the object.

c)

An object will remain at rest or in motion unless an outside force acts upon it.

d)

A force is a push or pulll

6.

Which of the following is Newton's 2nd law?

a)

For every action, there is an equal and opposite reaction.

b)

The acceleration of an object is produced by a net force and is inversely proportional to the mass of the object.

c)

An object will remain at rest or in motion unless an outside force acts upon it.

d)

A force is a push or pulll

7.

Which of the following is Newton's 1st law?

a)

For every action, there is an equal and opposite reaction.

b)

The acceleration of an object is produced by a net force and is inversely proportional to the mass of the object.

c)

An object will remain at rest or in motion unless an outside force acts upon it.

d)

A force is a push or pulll

8.

What are the units for Force?

a)

W

b)

N

c)

m/s

d)

m/s2

9.

Normal force is

a)

Always opposite the weight

b)

Always parallel and down the incline

c)

Always perpendicular to the surface

d)

It depends on the direction of motion

10.

The force of friction which acts between two surfaces when there is no relative motion between them is called:

a)

Static Friction

b)

Kinetic Friction

c)

Sliding Friction

d)

Rolling Friction

11.
Which of the following is an example of friction that is harmful?
a)
Pencil marking on paper
b)
Engine parts wearing out
c)
sand placed on ice in the winter
d)
Using an eraser to erase marks
12.
A type of friction that occurs when air pushes against a moving object causing it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity 
13.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
14.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
15.
What type of friction is not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
16.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
17.

A cannonball is launched horizontally at 50 m/s from an 80 m tall cliff. How far will it go (horizontally) before hitting the ground?

a)

100 m

b)

200 m

c)

400 m

d)

800 m

18.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
19.
Acceleration describes how an object’s velocity is changing.  Which of the following scenarios provides the best example of an accelerating object?
a)
A car driving at a constant speed
b)
A book sitting on top of a high shelf
c)
A toy train traveling in a circle
d)
A toy boat floating in a bathtub
20.
What is the net force?
100 N        230 N
<------        --------->
a)
30 N to the right
b)
230 N to the right
c)
130 N to the right
d)
This is a balanced force
21.

If you see something that is the color black, you are really seeing what?

a)

All of the visible light that strikes the object being reflected

b)

Most of the visible light that strikes the object is being reflected

c)

All of the visible light that strikes the object is being absorbed

d)

Most of the visible light that strikes the object is being absorbed

22.

Complete the sentence:


______________ is the number of crests of a wave that passes a single point in each second.

a)

Amplitude

b)

Frequency

c)

Wavelength

d)

Period

23.

A wave is a disturbance that transports which of the following?

a)

particles

b)

water

c)

light

d)

energy

24.

A longitudinal wave travels _____ to the direction of the wave's motion.

a)

at various angles

b)

parallel

c)

at a right angle

d)

perpendicular

25.

If the net force acting on an object is doubled, what happens to the acceleration of the

object?

a)

It is unchanged

b)

It is doubled

c)

It is quadrupled

d)

It is halved

26.

A student release a ball from a height of 1.5 m above the floor. Which of the following statements best describes the energy of the ball as it falls?

a)

Its potential energy is changed to kinetic energy

b)

The total amount of its mechanical energy increases

c)

Its kineitc energy is changed to potential energy

d)

The total amount of its mechanical energy decreases

27.

Choose the description that best describes this motion graph.

a)

Graph represents the motion of an object with increasing speed

b)

The object is moving at a constant velocity/speed.

c)

The object moved at a constant speed, then stopped. After stopping, it returned to the beginning and then moved back in the original direction at a very fast constant speed.

d)

Object not moving

28.

Tyler is taking a bus to see his grandmother. He has been riding on a bus for 2 hours and

has traveled 120 miles. Which equation can be used to show the distance, d, he will travel

in hours, h, assuming the bus will travel at a constant speed?

a)

d=2h

b)

d=60h

c)

d=150h

d)

d=155h

29.

A ball thrown straight up takes 8 total seconds to complete its journey all the way up and down. 1 second into its journey and 7 seconds into its journey the magnitude of its velocity will be ______________ and its direction _______________.

a)

opposite, the same

b)

the same, opposite

c)

the same, the same

d)

opposite, opposite

30.

If a ball thrown straight up into the air takes 4 seconds to reach the top (peak), how long will it take to travel from the peak back to the original position?

a)

0s

b)

1s

c)

3s

d)

4s

31.

The fact that an apple and a watermelon, dropped simultaneously from the same height, would hit the ground at the same time indicates that

a)

you don't like apples or watermelons.

b)

greater masses have greater acceleration.

c)

lesser masses have greater acceleration.

d)

acceleration is independent of mass.

32.

The initial horizontal velocity of a projectile is ____ its final horizontal velocity.

a)

less than

b)

equal to

c)

greater than

33.

What is true about the vertical velocity of a projectile launched horizontally?

a)

It is initially at its maximum value.

b)

It increases due to gravity as it falls.

c)

It remains constant throughout its trajectory.

d)

It decreases as it falls due to gravity.

34.

If two projectiles are launched at two different heights, 2m and 10m, which one will reach the ground first?

a)

2m

b)

10m

c)

they both will hit the ground at the same time

35.

Which hits the ground first if they start at the same height: a dropped ball or a ball launched with a

horizontal velocity?

a)

the launched ball

b)

the dropped ball

c)

they both hit at the same time

36.

What is the velocity of an object launched straight up at its highest point?

a)

zero

b)

equal to its vx

c)

½ its maximum value

d)

equal to gravity

37.

The path followed by a projectile is also known as its

a)

trajectory

b)

range

c)

height

d)

vertical displacement

38.

Once a projectile is launched, what is the only force that affects its motion?

a)

mass

b)

friction

c)

inertia

d)

gravity

39.

Which of the following would NOT be considered a projectile?

a)

A cannonball fired towards a distant castle.

b)

A cannonball rolling down a slope.

c)

A cannonball fired straight outward from a castle wall.

d)

A cannonball after it rolls off the edge of a cliff.

40.
If you throw a baseball straight up, what is its acceleration at the highest point?
a)
9.8 m/s2
b)
9.8 m/s
c)
0 m/s2
d)
0 m/s
41.
What is the horizontal acceleration of a projectile?
a)
0 m/s2
b)
9.8 m/s2
42.

Velocity is?

a)

a helium nucleus

b)

rate of change of distance moved with the direction

c)

the energy store in a body due to its height

d)

the amount of matter that an object is made of

43.

Acceleration is defined as

a)

the change in velocity over time

b)

the change in position over time

c)

the change in time over velocity

d)

the change in time over distance

44.

mass

a)

position where zero amplitude

b)

the amount of matter in an object

c)

the force exerted by the Earth

d)

force/area

45.

Weight

a)

Current in a circuit

b)

Force exerts on a body due to gravity

c)

the amount of matter in a body

d)

energy of a mass due to its motion

46.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
47.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
48.
Name the missing force...
a)
applied force
b)
weight force
c)
tension force
d)
drag
49.

Whenever an object is moving, there is always this force opposing the motion:

a)

inertia

b)

momentum

c)

friction

d)

applied force

50.

The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:

a)

normal

b)

abnormal

c)

static

d)

inertia

51.

What is the NET FORCE of this diagram?

a)

17 N, right

b)

17 N, left

c)

23 N, right

d)

12 N, up

52.

This object would be moving (pick all that are correct):

a)

up

b)

down

c)

left

d)

right

53.

The down-arrow in this diagram is most-likely:

a)

gravity

b)

normal

c)

a push or pull

d)

friction

54.

Which of the following is true about this free-body diagram?

a)

the forces are are balanced

b)

the object is free-falling

c)

the object is moving upward

d)

the forces are unbalanced

55.

What forces are on a leopard laying on a log?

a)

Fg & Fapp

b)

Fb & Fg

c)

Fg & FN

d)

Ff & FN

56.
Which one is balanced?
a)
top
b)
bottom
c)
both
57.
Is it BALANCED? 
a)
Yes
b)
No
58.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
59.

An object that has momentum can be described as _________

a)

changing its velocity

b)

moving fast

c)

resisting changes in its state of motion

d)

having its mass in motion

e)

encountering a net force

60.

Which one of these objects has the greater amount of momentum?

a)

A turtle that slowly crosses a road

b)

A parked car

c)

A stop sign

61.

Which one of the following units represents the standard metric units of momentum

a)

Newtons * meter / second

b)

Kilograms * meter / second2

c)

meter / second

d)

Kilograms * meter / second

62.

Which one of the following units represents the standard metric units of impulse

a)

Kilograms * meter / second2

b)

Newton * meter

c)

meter / second2

d)

Newton * second

63.

During a collision. an object experiences an impulse. How can this impulse be calculated?

a)

Multiplying force by time

b)

Multiplying mass by velocity

c)

Dividing velocity by time

d)

Multiplying mass by acceleration

64.

During a collision. an object experiences an impulse. The impulse causes and is equal to the _____ of the object

a)

energy change

b)

kinetic energy change

c)

force

d)

momentum

e)

momentum change

65.

When a cannon fires a cannon ball, it recoils backwards. This occurs because of...

a)

Energy in the system is conserved

b)

Energy in the system is increased

c)

Momentum in the system is conserved

d)

Energy in the system is not conserved

66.

A freight car of mass 20,000kg moves along a track at 15 m/s. What is the momentum of the car?

a)

30,000 kg*m/s

b)

3,000 kg*m/s

c)

300,000 kg*m/s

d)

3,000,000 kg*m/s

67.

A 2kg object moving at 5 m/s encounters a 30 N resistive force over a duration of 0.10 seconds. The impulse experienced by this object is _____

a)

0.30 N*s

b)

2 N*s

c)

2.5 N*s

d)

3 N*s

e)

7 N*s

68.

A 5kg ball has a momentum of 30 kg*m/s. What is the speed of the ball

a)

150 m/s

b)

35 m/s

c)

6 m/s

d)

5 m/s

69.

Padded dashboards in cars are safer in accidents than non padded ones because the passenger hitting the dash has...

a)

a) Increased time of impact

b)

b) decreased impulse

c)

c) decreased impact force

d)

d) a and b

e)

e) a and c

70.

Before objects A and B collide, A has a momentum of 26 kg*m/s and B has a momentum of -14 kg*m/s. After the collision, A has a momentum of 8 kg*m/s. B has a momentum of..

a)

2 kg*m/s

b)

4 kg*m/s

c)

6 kg*m/s

d)

12 kg*m/s

e)

32 kg*m/s

71.

A 10 kg object moves at 2 m/s to the right and collides with a 4 kg object moving at 5 m/s to the left. The total momentum is_____

a)

20 kg*m/s

b)

40 kg*m/s

c)

10 kg*m/s

d)

30 kg*m/s

e)

0 kg*m/s

72.

In an elastic collision...

a)

objects bounce off each other

b)

objects stick together

c)

objects stick together for a while then separate

d)

one object flips over the other

73.

In a completely inelastic collision...

a)

objects bounce off each other

b)

objects stick together

c)

objects stick together for a while then separate

d)

one object flips over the other

74.

What is the law that states that the total momentum of a closed system remains constant before and after a collision?

a)

Law of motion

b)

Newton's first law

c)

Law of inertia

d)

Law of conservation of momentum

75.
Light behaves like both a particle and a ______.
a)
Mass
b)
Wave
c)
Current
76.
What color has the shortest wavelength, or the highest frequency?
a)
yellow
b)
blue
c)
red
d)
violet
77.
The full spectrum of light energy is called the__________
a)
broad spectrum
b)
electromagnetic spectrum
c)
helium spectrum 
d)
natural light spectrum
78.
4 is 
a)
radio
b)
UV 
c)
Visible Light
d)
X-ray
79.
EM waves have the same speed but different:
a)
frequency & medium 
b)
wavelength & frequency
c)
medium & wavelength
d)
color & medium
80.
Select the correct order of waves on the Electromagnetic Spectrum
a)
Radio, Micro, Infra, Visible, Ultra, X-ray, Gamma
b)
Gamma, X-ray, Ultra, Vis, Infra, Micro, Radio
c)
Vis, Micro, Infra, Ultra, X-ray, Gamma, Radio
d)
Micro, Radio, Vis, Infra, Ultra, X-ray, Gamma
81.

Sound waves

a)

are a part of the electromagnetic spectrum.

b)

do not require a medium for transmission.

c)

are longitudinal waves.

d)

are transverse waves.

82.

As a sound source approaches and then moves past a stationary observer, the observer will hear

a)

a steady rise in pitch.

b)

a sudden drop in pitch.

c)

a rise in pitch, then a drop in pitch.

d)

a drop in pitch, then a rise in pitch.

83.

If you hear the pitch of a siren become lower, you know that

a)

neither you nor the siren is moving.

b)

you are moving toward the siren or the siren is moving toward you.

c)

you are moving away from the siren or the siren is moving toward you.

d)

the source has just passed you or it is accelerating away from you.

84.

Sound waves are produced by

a)

radio stations.

b)

vibrating objects.

c)

soft objects.

d)

objects under pressure.

85.

Sound waves cannot travel in

a)

steel

b)

air

c)

a vacuum

d)

water

86.

Match the description to the wave type!

Categorize the following

high speed

very tall

lots of water moved at once

slow speed

not very tall

very little water moved at once

Tsunami
Wind-driven wave
87.

As tsunami waves get closer to shore, they get ​ ​ (a)  

Choose from the below words
larger
smaller
shorter
longer
88.

What do you do if a tsunami is coming?

a)

Grab your surfboard and get ready, dude!

b)

Get to higher ground.

c)

Go to the beach to watch it!

d)

Nothing. Accept your fate.

89.

Put the tiles into the correct category!

Categorize the following

wind

boats

earthquakes

underwater volcanoes

landslides

a person cannonballing from a cruise ship deck

Things that cause tsunamis
Things that don't cause tsunamis
90.

When a Tsunami is far from shore it can be hard to detect.

a)

True

b)

False

91.

A Tsunami wave can move at over _______ miles per hour.

a)

10

b)

50

c)

500

d)

1000

92.

What natural event can cause a Tsunami?

a)

Earthquakes

b)

Volcanic Eruptions

c)

Landslides

d)

Glacier breaking off into the ocean

e)

All of the above

93.

What is a Tsunami?

a)

A large storm with high speed winds

b)

A tropical cyclone that occurs in the Pacific Ocean

c)

A large and powerful ocean wave

d)

A type of tornado

e)

Any earthquake that causes significant damage

94.
The Doppler effect is seen when a wave-making source moves toward an observer. 
a)
True
b)
False
95.
What can you tell about this object's motion?
a)
Moving to the North (up).
b)
Moving to the South (down). 
c)
Moving to the West (left). 
d)
Moving to the East (right). 
96.
What can you tell about the motion of this object?
a)
Moving left.
b)
Moving right quickly.
c)
Standing still. 
d)
Moving up slowly. 
97.

In this clip, the sound of the jet illustrates the doppler effect AS OBSERVED BY

a)

The man on the ground

b)

The pilot in the jet

c)

Both the man on the ground and the pilot in the jet

98.

The Doppler effect applies to light waves as well as sound waves. Astronomers use this to measure the motion of stars and galaxies. In 1929, Edwin Hubble discovered that light from distant galaxies was shifted away from the blue end of the spectrum and towards the red end of the spectrum. Red light has a longer wavelength (and a lower frequency) than blue light. What could Hubble conclude about these galaxies?

a)

The distant galaxies are growing smaller.

b)

The distant galaxies are moving towards the Earth.

c)

The distant galaxies are moving away from earth

99.

What is a transverse wave?

a)

A wave with particles moving parallel to the wave's energy transfer.

b)

A wave that travels in a straight line.

c)

A wave not requiring a medium to travel.

d)

A wave with particles moving perpendicular to the wave's energy transfer.

100.

How does a longitudinal wave differ from a transverse wave?

a)

Particles in longitudinal waves vibrate parallel to the direction of the wave, while particles in transverse waves vibrate perpendicular to the direction of the wave.

b)

Longitudinal waves have a higher frequency than transverse waves.

c)

Longitudinal waves can only travel through solids, while transverse waves can only travel through liquids and gases.

d)

Particles in longitudinal waves vibrate perpendicular to the direction of the wave, while particles in transverse waves vibrate parallel to the direction of the wave.

101.

What kind of wave is in the image?

a)

Longitudinal (Compression)

b)

Transverse

102.

What kind of wave is in the image?

a)

Longitudinal (Compression)

b)

Transverse

103.

What does point A represent?

a)

Amplitude

b)

Wavelength

c)

Crest

d)

Trough

104.

What does point C represent?

a)

Amplitude

b)

Trough

c)

Crest

d)

Wavelength

105.

Waves transfer (a)  

Choose from the below words
Matter
Molecules
Energy
Atoms
106.

6. Which of the following can act as media for a wave? (a)  

Choose from the below words
A. Solids only
B. Liquids only
C. Gases only
D. Solids, liquids, and gases
107.

What types of waves can travel through empty space AND mediums? (a)  

Choose from the below words
Longitudinal
Mechanical
Electromagnetic
108.

Identify the simple machine in the picture.

a)

Lever

b)

Inclined plane

c)

Wheel and axle

d)

Screw

109.

Identify the simple machine in the picture.

a)

Wheel and axle

b)

Inclined plane

c)

Lever

d)

Wedge

110.

Identify the simple machine in the picture.

a)

Inclined plane

b)

Wedge

c)

Pulley

d)

Screw

111.

Identify the simple machine in the picture.

a)

Wheel and axle

b)

Inclined plane

c)

Screw

d)

Pulley

112.

Identify the simple machine in the picture.

a)

Screw

b)

Wheel and axle

c)

Wedge

d)

Pulley

113.

Identify the simple machine in the picture.

a)

Inclined plane

b)

Wedge

c)

Lever

d)

Screw

114.

A hammer would be an example of which type of simple machine?

a)

Inclined plane

b)

Pulley

c)

Wheel and axle

d)

Lever

115.

A slide would be an example of which type of simple machine?

a)

Lever

b)

Inclined plane

c)

Wheel and axle

d)

Wedge

116.

A teeter-totter would be an example of which type of simple machine?

a)

Inclined plane

b)

Wedge

c)

Pulley

d)

Lever

117.

A door knob would be an example of which type of simple machine?

a)

Pulley

b)

Wheel and axle

c)

Screw

d)

Inclined plane

118.

A door stop would be an example of which type of simple machine?

a)

Wedge

b)

Inclined plane

c)

Wheel and axle

d)

Lever

119.

A crane would be an example of which type of simple machine?

a)

Wedge

b)

Wheel and axle

c)

Pulley

d)

Lever

120.

A wheelchair ramp would be an example of which type of simple machine?

a)

Inclined plane

b)

Wedge

c)

Pulley

d)

Wheel and axle

121.

A drill bit would be an example of which type of simple machine?

a)

Lever

b)

Wedge

c)

Incline plane

d)

Screw

122.

A simple machine makes work easier by doing which of the following?

a)

Increasing the distance through which force is applied.

b)

Changing the direction of applied force.

c)

Multiplying the force of the energy applied.

d)

All of the above.

123.

Compound machines consist of two or more simple machines combined together to make work easier and increase the mechanical advantage. What two simple machines are used in a wheelbarrow?

a)

Wheel/ axle and a lever

b)

Lever and a wedge

c)

Wheel/ axle and a screw

d)

Inclined plane and a lever

124.

Compound machines consist of two or more simple machines combined together to make work easier and increase the mechanical advantage. What two simple machines are used in a pair of scissors?

a)

Lever and a wheel/ axle

b)

Screw and a wedge

c)

Wedge and a lever

d)

Pulley and a lever

125.

Compound machines consist of two or more simple machines combined together to make work easier and increase the mechanical advantage. What two simple machines are used in a corkscrew?

a)

Pulley and a wedge

b)

Wedge and a screw

c)

Lever and an inclined plane

d)

Screw and a lever

126.

Compound machines consist of two or more simple machines combined together to make work easier and increase the mechanical advantage. What three simple machines are used in a can opener?

a)

Wedge , wheel/ axle, and inclined plane.

b)

Wedge, lever, and wheel/ axle.

c)

Inclined plane, screw, and wheel/ axle.

d)

Pulley, wheel/axle, and wedge.

127.

Compound machines consist of two or more simple machines combined together to make work easier and increase the mechanical advantage. What three simple machines are used in a bicycle?

a)

Wheel/ axle, pulley, and a lever.

b)

Inclined plane, pulley, and wheel/ axle.

c)

Wedge, lever, and screw.

d)

Screw, lever, and Inclined plane.

128.

Potential energy depends on the ________ and ________ of the object.

a)

Height (position)

b)

Mass

c)

Speed

d)

Friction

129.

Which point has the most potential energy?

a)

G

b)

F

c)

B

d)

A

130.

Kinetic energy depends on the ________ and ________ of the object.

a)

Height (position)

b)

Mass

c)

Speed

d)

Friction

131.

A cheetah can run briefly with a speed of 31 m/s. Suppose a cheetah with a mass of 47 kg runs at this speed. What is the cheetah’s kinetic energy?

a)

1457 J

b)

728.5 J

c)

45,167 J

d)

22,583.5 J

132.

Where does the pendulum have the greatest kinetic energy?

a)

A

b)

B

c)

C

d)

D

e)

E

133.
Which of the following objects has the most kinetic energy?
a)
A 20 kg toddler running at 5 m/s
b)
A 50 kg toddler running at  30 m/s
c)
A 90 kg toddler running at 30 m/s
d)
A 100 kg  toddler running at 2 m/s
134.

Which of the is the equation for calculating work?

a)

W = Fd

b)

W = ma

c)

W = mv

d)

W = mc2

135.

The sum of the kinetic and potential energy in a system is known as the system's _____________________ energy.

a)

mechanical

b)

chemical

c)

thermal

d)

combined

136.

How much power is used when 9000 J of work are done in 0.5 seconds?

a)

4,500 W

b)

18000 W

c)

9453 W

d)

917.4 W

137.

This weight lifter raised 105 kg to a height of approximately 2.31 m in 9 seconds. How much power did he developed?

a)

264 Watts

b)

1029 Watts

c)

2,377 Watts

d)

4,009 Watts

138.

Two people are lifting the same weight as shown in the animation. If they both do 10 reps, who will supply the most power?

a)

Bro A

b)

Bro B

c)

They both will do the same work

d)

Can't tell without knowing the weight they are lifting

139.

After a roller coaster cart reaches ground level and starts heading back up, what happens to its potential energy?

a)
Increases
b)
Decreases
c)
Stays the same
d)
Nothing
140.
If 68 W of power is produced in 18 seconds, how much work is done?
a)

1,224 J

b)

0.264 J

c)

3.77 J

d)

12.24 J

141.

Match the following Types of Friction to their descriptions

a)

Static Friction

1.

Pushing a stationary car

b)

Slide Friction

2.

Sledding down a hill

c)

Fluid Friction

3.

A plane flying through the air

d)

Rolling Friction

4.

A skateboarder going down a ramp

142.

Match the following descriptions to the type of friction

a)

Opposes motion in a liquid or gas

1.

Fluid friction

b)

Opposes motion on objects that are on wheels

2.

Rolling friction

c)

Opposes motion on objects that are gliding over a surface

3.

Sliding friction

d)

Opposes motion on objects that aren't moving

4.

Static friction

143.

Match the following

a)

N

1.

Newton

b)
2.

Newton's 1st Law

c)
3.

Newton's 2nd Law

d)
4.

Newton's 3rd Law

e)
5.

Impulse

144.

Match Newton's Laws of Motion to their descriptions.

a)

An object stays in motion at a constant velocity unless acted on by an unbalanced force.

1.

1st Law

b)

F=m⋅aF=m\cdot a

2.

2nd Law

c)

Every force on an object exerts an equal and opposite force back.

3.

3rd Law

145.

What is the definition of "weight"?

a)

measure of the gravitation pull on an object

b)

the time it takes to get on a ride

c)

the amount of matter in an object

d)

the size of an object

146.
If an object has more mass, then it will
a)
weigh more.
b)
weigh less.
c)
weigh the same as an object with less mass.
d)
always have more volume than an object with less mass.
147.
Why would you weigh less on the moon compared to Earth?
a)
less air
b)
less sunlight
c)
more gravitational pull
d)
less gravitational pull
148.

The one that stays the same no matter where you are.

a)

Bass

b)

Weight

c)

Mass

d)

Weather

149.

The unit that goes with weight.

a)

Kilogram

b)

Newton

c)

Milliliter

d)

Mile

150.

Grams and kilograms measure...

a)

capacity

b)

length

c)

time

d)

mass

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