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Unit 5 Review - Motion

Total questions: 65

Worksheet time: 42mins

Name
Class
Date
1.
Acceleration is the time rate of change of an object's velocity.
a)
True
b)
False
2.
Some objects may be in motion even when they do not appear to be.
a)
True
b)
False
3.
Acceleration is equal to initial velocity minus final velocity. 
a)
True
b)
False
4.
There is a no difference between speed and velocity.
a)
True
b)
False
5.
Do you multiply or divide distance and time traveled to find the speed?
a)
Multiply
b)
Divide
c)
Both
6.
A ___________ is a physical measurement that contains directional info. 
a)
vector quantity
b)
distance quantity
c)
scalar quantity
d)
directional
7.
The acceleration due to gravity for any object is __________.
a)
E= mc2
b)
9.8 m/seconds squared 
c)
p2 - p1
d)
d/t
8.
A physical measurement that does not contain directional information is ____________.
a)
acceleration
b)
mechanics
c)
a vector quantity
d)
a scalar quantity
9.
A point against which position is measured is a ___________.
a)
relative point
b)
position point
c)
motion point
d)
reference point
10.
Acceleration is... 
a)
speeding up
b)
slowing down
c)
changing direction
d)
All of the other 3
11.

Speed is relative.

a)

True

b)

False

12.

What is motion?

a)

a change in position

b)

the length of a route between two points

c)

a quantity that includes both size and direction

d)

a use of energy

13.

When 2 forces act in the same direction, the ___ ___ is equal to the sum of the forces.

a)

kinetic friction

b)

average speed

c)

static friction

d)

net force

14.

If one person pushes a box with 100 N to the right and the other person is pushing to the left with a force of 25 N what is the net force?

a)

125 N

b)

80 N

c)

-125 N

d)

75 N

15.

Kinetic friction is always greater than static friction.

a)

True

b)

False

16.

Friction that acts on objects when they are rolling over a surface.

a)

Static friction

b)

Sliding friction

c)

Fluid friction

d)

Rolling friction

17.

Friction that acts on objects when they are not moving relative to each other.

a)

Static friction

b)

Sliding friction

c)

Fluid friction

d)

Rolling friction

18.

Friction that acts on objects when they are moving through air or water.

a)

Static friction

b)

Sliding friction

c)

Fluid friction

d)

Rolling friction

19.

Friction that happens as you push a box across the floor.

a)

Static friction

b)

Sliding friction

c)

Fluid friction

d)

Rolling friction

20.

The SI unit for force is the

a)

newton (N).

b)

meter (m).

c)

push (p).

d)

vector (v).

21.
Sir Isaac Newton was not a religious man and seldom read the bible.
a)
True
b)
False
22.
A heavy object always falls faster than a lighter object.
a)
True
b)
False
23.
A foot is the standard unit of force.
a)
True
b)
False
24.
Force = mass x acceleration
a)
True
b)
False
25.
Newton's first law is often referred to as:
a)
the law of order
b)
the law of friction
c)
the law of inertia
d)
the law of gravity
26.
If a body in motion resists a change in velocity, why does a marble in motion on the earth's surface stop after a period of time? 
a)
because of the sticky gum theory
b)
because of friction
c)
because of the greenhouse effect
d)
because it wants to stop
27.
What is Newton's First Law?
a)
Objects may be moving even when they do not appear to be.
b)
An object in motion or at rest will tend to stay in motion or at rest until it is acted upon by an outside force.
c)
When an object is acted on by one or more outside forces, the total force is equal to the mass of the object times the resulting acceleration.
d)
For every action, there is an equal and opposite reaction.
28.
What is Newton's Second Law?
a)
Objects may be moving even when they do not appear to be.
b)
An object in motion or at rest will tend to stay in motion or at rest until it is acted upon by an outside force.
c)
When an object is acted on by one or more outside forces, the total force is equal to the mass of the object times the resulting acceleration.
d)
For every action, there is an equal and opposite reaction.
29.
What is Newton's Third Law?
a)
Objects may be moving even when they do not appear to be.
b)
An object in motion or at rest will tend to stay in motion or at rest until it is acted upon by an outside force.
c)
When an object is acted on by one or more outside forces, the total force is equal to the mass of the object times the resulting acceleration.
d)
For every action, there is an equal and opposite reaction.
30.
Which of these is one of Newton's accomplishments?
a)
Explanation of gravity
b)
Development of calculus
c)
Relating science to theology
d)
All of the other three
31.

In experiment 22-2 (where we spun a raw egg and a hard boiled egg and then stopped them and quickly let go), what made the raw egg continue spinning?

a)

The inertia of the shell

b)

The inertia of the inner liquid

c)

Gravity

d)

Air resistance

32.
Inertia is:
a)
a feeling of nausea
b)
a moving object's force keeping it in motion
c)
the force that opposes motion
d)
the force on a still or moving object keeping it in that state. 
33.
A heavy object:
a)
requires more force to get moving.
b)
requires less force to get moving.
c)
requires the same force as a lighter object to get moving.
d)
is affected more by air resistance.
34.
Friction that opposes motion once the motion has already started is:
a)
Kinetic friction
b)
Inertia friction
c)
Static friction
d)
Motion friction
35.

What is acceleration?

a)

a measure of the change in velocity of a moving object

b)

a measure of the change in mass of an object at rest

c)

a measure of the change in weight of a moving object

36.

How does an object overcome inertia?

a)

An unbalanced force must act on that object.

b)

The object must come to a sudden stop.

c)

The velocity must decrease.

d)

A balanced force must act on the object.

37.

The acceleration of an object when it's falling is always...

a)

7.8 m/s2

b)

32 m/s2

c)

12 m/s2

d)

9.8 m/s2

38.

Which of the following will accelerate the fastest. (Assume that the same amount of force is applied to all of them.)

a)

A ping pong ball

b)

A bowling ball

c)

A golf ball

d)

A tennis ball

39.

Which of the following will accelerate the slowest. (Assume that the same amount of force is applied to all of them.)

a)

A ping pong ball

b)

A bowling ball

c)

A golf ball

d)

A tennis ball

40.

Newton’s second law shows that there is a direct relationship between force and acceleration.

a)

True

b)

False

41.
When a ball is thrown towards the earth, only the ball is moving.
a)
True
b)
False
42.
A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.  
a)
wedge
b)
screw
c)
lever
d)
inclined plane 
43.
An inclined plane wrapped around a rod forms this simple machine 
a)
lever
b)
pulley
c)
screw
d)
wedge 
44.
A simple machine that consists a rigid bar that pivot about a fixed point
a)
lever
b)
pulley
c)
wheel and axle
d)
fulcrum 
45.
________________ is done whenever a force moves an object a distance
a)
load
b)
friction
c)
force
d)
work
46.
How much work is done if I use 5 Newtons to move an object 2 meters?
a)
10 Newtons
b)
10 meters
c)
10 Joules
d)
7 Joules
47.
A device that has two or more simple machines working together 
a)
fulcrum 
b)
pulley
c)
compound (complex) machine 
d)
motor 
48.
Which of the following does a simple machine NOT do?
a)
Increase the force applied
b)
Increase the distance the force is applied over
c)
Change the direction the force is applied
d)
Change the amount of work that needs to be done
49.
Simple machines allow us to do less work.
a)
TRUE
b)
FALSE
50.
The unit used to measure work is the 
a)
Watt
b)
Newton
c)
Joule
d)
meter
51.

Which of the following is the best example of work being done.

a)

doing homework

b)

lifting a box

c)

pushing a stationary box

d)

holding a box

52.
What is the unit for mass?
a)
Kilogram (Kg)
b)
Newton (N)
c)
Joule (J)
d)
Watt (W)
53.
The amount of work done in a certain amount of time is known as 
a)
work
b)
effort force
c)
resistance force 
d)
power
54.
 Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
55.
What is the equation for power?
a)
P = Work/time
b)
P = Force/time
c)
P = time/distance
d)
P = Work * time
56.
The unit used to measure power is the 
a)
Watt
b)
Newton
c)
Joule
d)
Newton*meter
57.
Force is measured using which type of unit?
a)
Meters
b)
Kilograms
c)
Newtons
d)
Joules
58.

The number of times a machine multiplies force is called___.

a)

mechanical advantage

b)

mechanical efficiency

c)

power

d)

work

59.

A ___ is a grooved wheel with a rope running through it.

a)

wedge

b)

screw

c)

wheel and axle

d)

pulley

60.

You make a calculation and the result is 2.5


What did you calculate?

a)

Work

b)

Power

c)

Mechanical Advantage

d)

Mechanical Efficiency

61.

You make a calculation and the result is 75%


What did you calculate?

a)

Work

b)

Power

c)

Mechanical Advantage

d)

Mechanical Efficiency

62.

You make a calculation and the result is 200 W


What did you calculate?

a)

Work

b)

Power

c)

Mechanical Advantage

d)

Mechanical Efficiency

63.

You make a calculation and the result is 1,000 J


What did you calculate?

a)

Work

b)

Power

c)

Mechanical Advantage

d)

Mechanical Efficiency

64.

A ___ is a double inclined plane that moves.

a)

wedge

b)

screw

c)

inclined plane

d)

pulley

65.

A ___ consists of two connected rings or cylinders that both turn around the same center point.

a)

wedge

b)

wheel and axle

c)

inclined plane

d)

pulley

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