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Unit 3 Test

Total questions: 31

Worksheet time: 31mins

Name
Class
Date
1.

the attractive force between objects

a)

weight

b)

friction

c)

gravity

d)

mass

2.

force that resists/opposes motion

a)

weight

b)

friction

c)

gravity

d)

mass

3.

the measure of the force of gravity on an object

a)

weight

b)

friction

c)

gravity

d)

mass

4.

in Science, measured with Newtons

a)

weight

b)

mass

5.

in Science, measured with kilograms

a)

weight

b)

mass

6.

When placed at equal distances apart, the greatest gravitational attraction will be between two

a)

skateboards

b)

bowling balls

c)

school buses

7.
Two factors effecting the magnitude of the force of gravity between 2 objects are...
a)
mass and distance 
b)
mass and volume
c)
distance and weight 
d)
weight and mass
8.

Gravity is one type of ___.

a)

frictional force

b)

contact force

c)

gravitational force

d)

noncontact force

9.

An example of newtons 1st law

a)

kicking a ball

b)

walking

c)

moving

d)

running

10.

The tendency of objects to resist a change in motion is called:

a)

Friction

b)

Inertia

c)

Gravity

d)

Velocity

11.
What is acceleration?
a)
The amount of stuff that makes up something
b)
The resistance that one surface or an object encounters when moving against another
c)
A change in speed or direction of something
d)
A tendency to do nothing or to remain unchanged
12.
What is an example of inertia?
a)
Jumping on a diving board
b)
Trying to push a couch that's sitting on a fluffy rug is harder than pushing that same couch on a smooth floor
c)
A book on a table remaining at a rest
d)
A ball rolling along a level surface will eventually slow down and stop due to friction
13.
What is an example of Newton's third law?
a)
a car moving forward when being pushed forward
b)
A ball rolling along a level surface will eventually slow down and stop
c)
Jumping on a diving board
d)
The resistance that one surface or an object encounters when moving against another
14.

A frog leaping upward off the lily pad is pulled down by gravity and lands on another lily pad instead of continuing in a straight line.

a)

Newton's 1st Law of Motion (Inertia)

b)

Newton's 2nd Law of Motion F=ma

c)

Newton's 3rd Law of Motion (Action/Reaction)

15.

As the fuel in a rocket ignites, the force of the gas expansion and explosion pushes out the back of the rocket and pushes the rocket forward.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

16.

Rocky, age 12, and Parker, age 20, skip pebbles on the pond. The pebbles Parker throw go farther and faster than Rocky's.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

17.
What is the person doing from 5 seconds to 10 seconds?
a)
Walking 
b)
Running
c)
Standing Still 
d)
Walking Fast
18.
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. 
19.
What is happening at D?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
20.
What is happening at E?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Steady speed; returning to start position
21.

A person pushes against a wall with 15N of force. The wall doesn't move. The wall exerts how much force on the student?

a)

15N

b)

greater than 15N

c)

less than 15N

d)

0N

22.

What would cause the person on the left to change position?

a)

The force applied by the two people on the right would have to be greater than 200N.

b)

the force applied by the two people on the right would have to be less than 200 N.

c)

The person on the left would need to turn around

d)

It is impossible

23.

What is the speed of an object in a given direction?

a)

force

b)

speed

c)

motion

d)

velocity

24.
This is the rate of change in velocity.
a)
Instaneous Speed
b)
Acceleration
c)
Average Speed
d)
Deceleration
25.
Which explains the information needed to calculate speed and velocity?
a)
Both require the total distance, but velocity also requires time and displacement. 
b)
Speed requires displacement, while velocity requires distance. 
c)
Both require time, but velocity requires displacement and speed requires distance. 
d)
Speed does not require time, while velocity does require time. 
26.

The steeper the slope, the greater the ???

(a)  

27.

If the man and the ball travels 90 m in 9 seconds, what is their average speed?

a)

10 m/s

b)

180 m/s

c)

99 m/s

d)

10 meters

28.

Starting point you choose to describe the location (or position) of an object.

a)

Reference Point

b)

Relative Motion

c)

Acceleration

d)

Dimension

29.

What is the speed formula?

a)

d = s*t

b)

s= time/distance

c)

d= speed/time

d)

s = distance/time

30.

What force ultimately slows the roller coaster to a stop?

a)

Applied

b)

Normal

c)

Friction

d)

Gravitational

31.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force

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