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Forces and Motion

Total questions: 53

Worksheet time: 57mins

Name
Class
Date
1.
The term for when an object speeds up, slows down, or changes direction
a)
Speed
b)
Velocity
c)
Acceleration
d)
Newtons
2.
How much force is required to accelerate 10 kg at a rate of 100 m/s2?
a)
1,000kg
b)
10N
c)
10kg
d)
1,000N
3.
What is the acceleration of a 50 kg object pushed with a force of 2,500 newtons?
a)
75,000N
b)
50N
c)
2500N
d)
50m/s2
4.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
5.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
6.
If these boys 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.
7.
Which of the following statements is true? 
a)
Balanced forces cause a change in motion. 
b)
Unbalanced forces cause a change in motion. 
c)
Forces do not effect the change in motion. 
8.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
9.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
10.
If you pull the cord, what direction will the box move?
a)
Up
b)
Down
c)
Left
d)
Right
11.
_______ is a force that acts between two objects which are touching. This force slows any movement between the two objects.
a)
pressure
b)
magnetism
c)
friction
12.
One way that a force can cause the change in an object's motion is to...
a)
do nothing.
b)
eat ice cream.
c)
start the object moving.
d)
shine on the object.
13.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
14.
Any time the forces are unbalanced, an object will remain at rest. True or false?
a)
true
b)
false
15.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
16.
A baseball is thrown a distance of 50 meters. What is the speed if it takes 2 seconds to cover that distance?
a)
100 m/s2
b)
25 m/s2
c)
52 m/s2
d)
100 seconds
17.
Which of the following objects has the least acceleration?
a)
a. an empty shopping cart pushed with a hard force
b)
b. a full shopping cart pushed with a hard force
c)
c. an empty shopping cart pushed with a light force
d)
d. a full shopping cart pushed with a light force
18.
During which interval is the object speeding up?
a)
A to B
b)
B to C
c)
D to E
d)
E to F
19.
What is this graph showing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
20.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced 
a)
12 N Right  No
b)
4 N Left  No
c)
12 N Right  Yes
d)
4 N Left  Yes
21.
What is the net force
a)
10 N
b)
0 N
c)
25 N
d)
1 N
22.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
23.
Which statement is true about a moving object?
When an object is ....
a)
...accelerating, the resultant force acting on it must be zero
b)
... moving at a steady speed, the air resistance acting on it must equal zero
c)
... moving at a steady speed, the resultant force acting on it must equal zero
d)
... moving, there must be a resultant force acting on it.
24.
A woman lifts 20 bricks, each of weight 6N.
What other information is needed to calculate the useful work done in lifting the bricks?
a)
the distance she lifts the bricks
b)
the mass of the bricks
c)
the time taken to lift the bricks
d)
the volume of the bricks
25.
How far does the car travel before it reaches a steady speed?
a)
10m
b)
20m
c)
100m
d)
200m
26.
a)
  A
b)
  B
c)
  C
d)
  D
27.
a)
   A
b)
  B
c)
   C
d)
   D
28.

If I combine your energy with mine in the same direction, we will have :

a)

a lot of energy

b)

balanced force

c)

unbalanced force

d)

net force

29.

A balanced force ___________change the motion of object.

a)

Does

b)

Does Not

30.

Which picture(s) shows an unbalanced force?

a)
b)
c)
d)
31.

If my book is lying on the table, what Law is being demonstrated?

a)

Newton's Third Law

b)

Newton's Second Law

c)

Newton's Fourth Law

d)

Newton's First Law

32.

What is being demonstrated in the picture?

a)

Man overcoming gravity.

b)

Man overcoming inertia.

c)

Man demsonstrating Newton's Third Law.

d)

Man demonstrating Newton's First Law.

33.

What is happening in this picture?

a)

Boy is overcoming gravity

b)

Boy is an unbalanced force acting on an object.

c)

Boy is being a jerk.

d)

Boy is a balanced force acting on an object.

34.

Which picture shows Newton's Second Law?

a)
b)
c)
d)
35.

What is the answer to this problem?

a)

50 Newtons to the left

b)

50 Newtons to the right

c)

950 Newtons to the left

d)

950 Newtons to the right

36.

How does gravity pull?

a)

Equal to the height

b)

Equal to the mass of Earth

c)

Downward or toward center of gravity.

d)

Upward toward the center of gravity

37.

Friction can be reduced by:

a)

Roughing up the surface

b)

Smoothing the surface

c)

Oiling the surface

d)

Painting the surface with black paint

38.

Velocity is:

a)

Speed

b)

Direction

c)

Mass and distance

d)

Speed and direction

39.

Gravity and friction can affect:

a)

speed and direction

b)

mass and distance

c)

internal forces

d)

mass and direction

40.
A horizontal line on a distance-time graph means the object is
a)
moving at a constant speed.
b)
moving faster.
c)
slowing down.
d)
at rest.
41.

It describes how far an object has moved.

a)

range

b)

distance

c)

displacement

d)

relative motion

42.

The rate of motion is called _____________.

a)

displacement

b)

distance

c)

velocity

d)

speed

43.

The total distance traveled divided by the total time of travel is called ______________.

a)

velocity

b)

speed

c)

instantaneous speed

d)

average speed

44.

Which graph illustrates constant speed?

a)

A

b)

B

c)

Both

d)

Neither

45.

What is the average speed of object B?

a)

A = 20 m/min

b)

A = 40 m/min

c)

A = 80 m/min

d)

A = 240 m/min

46.

Describe the motion shown in the graph.

a)

constant speed

b)

acceleration

c)

deceleration

d)

stopped

47.

The object in the graph is ______________.

a)

moving at a constant speed

b)

stoppped

c)

accelerating

d)

changing direction

48.
What is MOVEMENT?
a)
Inertia
b)
Force
c)
Work
d)
Motion
49.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
50.
What is the formula for calculating speed?
a)
time divided by distance
b)
distance divided by time
c)
mass times velocity
d)
half times mass squared
51.
Which type of force(s) will cause a change in an object's motion?
a)
Newtonian forces
b)
zero net force
c)
balanced forces
d)
unbalanced forces
52.
An object in motion will stay in what kind of motion as long as the net forces acting on it are zero?
a)
slowing motion in a straight line
b)
accelerating motion in a straight line
c)
constant motion in a straight line
d)
constant motion in an unpredictable direction
53.
What is the energy of a moving object?
a)
potential energy
b)
gravitational potential energy
c)
kinetic energy
d)
electrical energy