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9-1 Forces & Motion

Total questions: 68

Worksheet time: 44mins

Name
Class
Date
1.

a push or pull is called a

a)

force

b)

motion

2.
__________________ is the force that makes an object slow down.
a)
speed
b)
gravity
c)
friction
d)
pulley
3.
Which object needs a smaller force to move it?
a)
leaf
b)
rock
4.
What is a force that makes an object slow down when it rubs against another object?
a)
energy
b)
friction
c)
direction
d)
pulley
5.

Which force are you using to throw a ball?

a)

push

b)

pull

6.
Which force are you using to drag a chair?
a)
push
b)
pull
7.

What is speed?

a)

The acceleration of an object

b)

How fast an object is moving

c)

When an object changes direction

d)

How the object reacts when it hits something

8.

When you are moving an object closer to you, you are...

a)

Pulling

b)

Pushing

c)

Yelling

d)

Speeding up

9.
How position changes over time
a)
force
b)
distance
c)
motion
d)
velocity
10.
When an object remains at rest or in motion unless acted on by an unbalanced force.
a)
force
b)
motion
c)
friction
d)
inertia
11.
Measurement of distance and time 
a)
speed
b)
accleration
c)
velocity
d)
momentum
12.
An object's speed in a certain direction
a)
acceleration
b)
deceleration
c)
velocity
d)
speed
13.
Change in motion caused by change in speed or unbalanced forces (speeding up)
a)
deceleration
b)
acceleration
c)
speed
d)
velocity
14.
The force an object has when moving
a)
mass
b)
matter
c)
momentum
d)
motion
15.
An object in motion tends to stay in motion, and an object at rest tends to stay at rest, unless they are acted upon by another force.
a)
Newton's 1st law
b)
Newton's 2nd law
c)
Newton's 3rd law
d)
Newton's 4th law
16.
As mass increases, more force is needed to move it. Objects with more mass will create more force.
a)
Newton's 1st law
b)
Newton's 2nd law
c)
Newton's 3rd law
d)
Newton;s 4th law
17.
Every action has an equal and opposite reaction
a)
Newton's 1st law
b)
Newton's 2nd law
c)
Newton's 3rd law
d)
Newton's 4th law
18.
Mass and weight are the same measurements 
a)
True 
b)
False
19.
A pulling force between to objects is
a)
strength
b)
gravity
c)
Inertia
d)
work
20.
Objects can be the same size but weigh differently
a)
true
b)
false
21.
The location of an object, or its place is called ______________________.
a)
motion
b)
positon
c)
speed
d)
gravity
22.
What is speed?
a)
The pull of gravity
b)
A push
c)
The rate at which an object changes its position
d)
A pull
23.
What would happen if more force were applied to a wagon?  The force acts in the same direction that the wagon is moving.
a)
The wagon would slow down
b)
The wagon would move faster
c)
Nothing would happen
d)
The wagon would stop
24.
What would happen if a basketball was headed toward you, and you hit the basketball back?
a)
Nothing would happen
b)
The basketball would move faster
c)
The basketball would deflate
d)
The basketball would move in a different direction
25.
Which would make a kickball roll faster?
a)
increase the ball's weight
b)
increase the ball's mass
c)
apply a great force
d)
increase the distance the ball rolls
26.
Which would NOT affect the motion of an object?
a)
a balanced force
b)
more friction
c)
a greater force
d)
a change in mass
27.
True or False
Would a person's weight on one planet be different from the same person's weight on another planet?
a)
True
b)
False
28.
True or False
A matchbox car would NOT need a push for it to move up a ramp.
a)
True
b)
Fasle
29.
Without gravity, what would happen if you threw a ball straight into the air?
a)
It would continue to go up and not come back down
b)
nothing would happen
c)
It would come back down to Earth
d)
it would change direction
30.
How can you prove that gravity affects an apple?
a)
nothing would happen
b)
if you throw an apple into the air it will continue to go up
c)
it will move faster
d)
if you throw an apple in the air, it would fall to the ground
31.
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.
32.
An object may move when a _______ is applied to it. 
a)
force
b)
gravity
c)
friction
33.
Why is there less friction between two ice cubes touching than between sandpaper on wood?
a)
They have rough surfaces.
b)
They have loud surfaces.
c)
They have smooth surfaces.
d)
They have bright surfaces.
34.
What is one way to reduce friction?
a)
Put sandpaper between the surfaces that touch.
b)
Push the surfaces closer together.
c)
Shine a light on the surfaces.
d)
Put a slippery substance between the surfaces.
35.
Why do air planes and race cars have sleek shapes?
a)
to reduce friction from air resistance
b)
to increase air resistance
c)
to look more appealing than cats
d)
so people will buy them
36.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
37.
What is the formula for force?
a)
F=M/A
b)
F=A/M
c)
F=M*A
d)
F=M*F
38.
What happens when two forces act in the same direction?
a)
They cancel each other out.
b)
The stronger one prevails.
c)
Their strengths are added.
d)
Their sum divided by the two is the total force.
39.
Any time the forces are unbalanced, an object will remain at rest. True or false?
a)
true
b)
false
40.
What is the net force on the block? (click on the words to view the picture)
a)
5 Newtons up
b)
5 Newtons down
c)
15 Newtons up
d)
15 Newtons down
41.
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. 
42.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
43.
If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
44.
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
45.
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
46.
During which interval is the object speeding up?
a)
A to B
b)
B to C
c)
D to E
d)
E to F
47.
What is this graph showing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
48.
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
49.
The picture of the position vs. time graph shows an object that is...
a)
accelerating/speeding up
b)
moving at a constant speed 
c)
not moving 
d)
accelerating/slowing down. 
50.
What is the standard unit force is measured in?
a)
Newtons
b)
pounds
c)
grams
d)
meters
51.
What is the standard unit force is measured in?
a)
Newtons
b)
pounds
c)
grams
d)
meters
52.

An object has a mass of 50kg. The gravitational field strength on Earth is 10.0N/ kg. The gravitational field strength on a distant planet is 4.0N/ kg. What is the weight of the object on Earth, and what is its weight on the distant planet?

a)

on Earth: 5.0 kg; on distant planet: 12.5 kg

b)

on Earth: 5.0 N; on distant planet: 12.5 N

c)

on Earth: 500 kg; on distant planet: 200 kg

d)

on Earth: 500 N; on distant planet: 200 N

53.

An astronaut in an orbiting spacecraft experiences a force due to gravity. This force is less than when she is on the Earth’s surface. Compared with being on the Earth’s surface, how do her mass and her weight change when she goes into orbit?

a)

mass in orbit: decreases; weight in orbit: decreases

b)

mass in orbit: decreases; weight in orbit: unchanged

c)

mass in orbit: unchanged; weight in orbit: decreases

d)

mass in orbit: unchanged; weight in orbit: unchanged

54.

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

55.

Weight is an example of which quantity?

a)

acceleration

b)

force

c)

mass

d)

pressure

56.

The mass of an object is measured on Earth. The mass is 5.0kg. The object is taken to the Moon. The mass of the object is measured on the Moon. What is the mass of the object on the Moon?

a)

0 kg

b)

more than 0kg, but less than 5.0kg

c)

5.0 kg

d)

more than 5.0 kg

57.

Which statement about mass or weight is correct?

a)

Mass is a force.

b)

Mass is measured in newtons.

c)

Weight is a force.

d)

Weight is measured in kilograms.

58.

Which instrument is used to compare the masses of objects?

a)

a balance

b)

a barometer

c)

a manometer

d)

a measuring cylinder

59.

A customer goes to a market and buys some rice. The stallholder pours rice into a dish that hangs from a spring balance. He records the reading on the spring balance.

The customer then buys some pasta and the stallholder notices that the reading on the spring balance, with just pasta in the dish, is the same as it was with just rice in the dish. The rice and the pasta must have the same :

a)

density.

b)

temperature.

c)

volume.

d)

weight.

60.

A 1 kg sample of aluminium is stored in a laboratory. In a different laboratory, in the same town, there is a 1 kg sample of iron. Which quantity must these two samples always have in common?

a)

the same density

b)

the same temperature

c)

the same volume

d)

the same weight

61.

Two blocks of metal X and Y hang from spring balances, as shown in the diagrams.

What does the diagram show about X and Y?

a)

They have the same mass and the same volume but different weights.

b)

They have the same mass and the same weight but different volumes.

c)

They have the same mass, the same volume and the same weight.

d)

They have the same weight and the same volume but different masses.

62.

A child sits on a rubber ball and bounces up and down on the ground.

What stays the same when the ball hits the ground?

a)

the acceleration of the ball

b)

the mass of the ball

c)

the shape of the ball

d)

the velocity of the ball

63.

A cup contains hot liquid. Some of the liquid evaporates. What happens to the mass and to the weight of the liquid in the cup?

a)

mass: decreases; weight: decreases.

b)

mass: decreases; weight: stays the same.

c)

mass: stays the same; weight: decreases.

d)

mass: stays the same; weight: stays the same.

64.

A geologist places a small rock on the left-hand pan of a balance. The two pans are level as shown when masses with a total weight of 23 N are placed on the right-hand pan. Take the weight of 1.0 kg to be 10 N.

What is the mass of the small rock?

a)

0.023 kg

b)

2.3 kg

c)

23 kg

d)

230 kg

65.

The diagrams show four objects A, B, C and D. The centre of mass M of each object is marked on the diagrams. Which object is not in equilibrium?

a)

A

b)

B

c)

C

d)

D

66.

Five identical bags of rice are balanced on a uniform beam by an object of mass 10kg.

Two more identical bags of rice are added to the other five. The average position of the bags on the beam does not change.

What mass now balances the bags?

a)

3.5 kg

b)

7.0 kg

c)

12 kg

d)

14 kg

67.

The diagram shows a uniform beam being used as a balance. The beam is pivoted at its centre. A 1.0 N weight is attached to one end of the beam. An empty pan weighing 0.2 N is attached to the other end of the beam.

How many 0.1 N weights must be placed on the pan in order to balance the beam?

a)

5

b)

8

c)

10

d)

12

68.

A heavy beam rests on two supports. The diagram shows the only three forces F1, F2 and F3 acting on the beam.

The beam is in equilibrium. Which statement is correct?

a)

All the forces are equal in size.

b)

The resultant force on the beam is in the opposite direction to the resultant turning effect.

c)

The resultant force on the beam is zero and the resultant turning effect on the beam is zero.

d)

The total upward force is twice the total downward force.

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