Unit 2 Test Review
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• Question 1
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Q.

1. An object in motion stays in motion and an object at rest stays at rest until….

a. A constant force is required to keep it in constant motion

a. An unbalanced force acts on it

a. A balanced force acts on it

a. Objects in motion naturally come to rest.

• Question 2
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Q.

1. Inertia can be measured by using

Mass

Velocity

Mass x Velocity

Force

• Question 3
30 seconds
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Q.

Which object has more inertia?

A car rolling at 5 m/s

A bowling be acting all rolling at 1 m/s

A ping pong ball rolling at 2 m/s

A tractor trailer moving at 2 m/s

• Question 4
30 seconds
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Q.

Two books are laying on a tabletop. Without picking them up how could you determine which has the greatest inertia.

Give each one a push, the one that moves the easiest has less mass thus less inertia

Look at them, the larger one will have more inertia

Neither one has inertia they are not moving

It is impossible to tell

• Question 5
30 seconds
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Q.

In order for a 1200 kg car to maintain a velocity of 4 m/s in a frictionless world how much force must be applied.

4800 N

300 N

0 N

4 N

• Question 6
30 seconds
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Q.

If Shane and Susan both push on a box with a force of 25N in opposite direction, what will happen to the box?

The box will not move

The box will slide toward Shane

The box will slide toward Susan

The box will be perpendicular to both Shane and Susan.

• Question 7
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Q.

A 5.5 kg lunch box is pushed across a lunch table. The acceleration of the box is 4.2 m/s2. What was the net force applied to the box?

1.3 N

1.31 N

9.7 N

23.1 N

• Question 8
30 seconds
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Q.

Beth exerts 14N of force to propel a 4.5 kg bowling ball down the lane. Describe how the ball will travel.

The bowling ball accelerates toward the pins at 3.1 m/s2.

The inertia increases to 6.75 m/s2 as the ball approaches the pins.

It descends on the pins at the end of the lane with a velocity of 17 m/s2.

The ball shows the result of unbalanced forces with a momentum of 9.6 m/s2.

• Question 9
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Q.

A person is on a raft. The person exerts a force on the raft, causing the raft to move. The person also moves in the opposite direction.

Which statement BEST explains why the person and the raft moved in opposite directions?

Second law of motion

Action and reaction forces

Person wanted the raft to move

Force is the product of mass and acceleration

• Question 10
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Q.

Two trucks, as seen above, were driving down a two lane road and were involved in a head-on crash. How does the force experienced by the driver of each truck compare?

The forces on the two drivers are equal

The force on the faster truck is greater

We cannot calculate the force on the drivers.

The force on the driver of the larger truck is less than the driver of the smaller truck.

• Question 11
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Q.

Based on the picture below, which force would represent the force of gravity?

Force A

Force B

Force C

Force D

• Question 12
30 seconds
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Q.

1. Consider a bullet shot from a gun. The acceleration of the bullet is _________________.

Greater than the acceleration of the gun

Equal to the acceleration of the gun

Equal but opposite to the acceleration of the gun

Less than the acceleration of the gun

• Question 13
30 seconds
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Q.

Joe pushes Bill, who is sleep. Bill

will inevitably push Joe when he wakes.

pushes Joe, but not as hard.

does not push Joe.

pushes Joe equally as hard.

• Question 14
60 seconds
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Q. What Unit do we measure Force in?
Newtons
Joules
Force
Don't know
• Question 15
900 seconds
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Q.
1st
2nd
3rd
law of motion
• Question 16
900 seconds
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Q. With unbalanced forces, the object will move in the direction that the _______ force is being applied.
larger
smaller
equal
less
• Question 17
900 seconds
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Q. A 20 kg bike accelerates at 10 m/s2.  what was the force
25 Newtons
20 Newtons
200 Newtons
10 Newtons
• Question 18
900 seconds
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Q. Newton's third law states that any action will have a(n) _______ and ______ reaction
Equal and similar
Equal and opposite
Equal and different
Greater and opposite
• Question 19
900 seconds
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Q. 8 N to the left , and 4 N to the right. Find the net force. Is this balanced
12 N Right  No
4 N Left  No
12 N Right  Yes
4 N Left  Yes
• Question 20
900 seconds
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Q. You hit a wall with a stick.  The equal but opposite reaction is _____
the wall pushes against you
the stick pushes against you
you push against the stick
the wall pushes against the stick
• Question 21
30 seconds
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Q.

The Coffee cup in the picture is resting on a table. What force(s) are missing from the free body diagram?

No forces are missing

The normal force from the table pushing the cup up.

The normal force form the table pushing the cup down.

The friction force from the table pushing the cup left and right.

• Question 22
30 seconds
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Q.

A squirrel sits on the ground and eats a donut. If the ground pushes up on the squirrel with a force of 11 N, The squirrel and donut together weigh ...

less than 11 N

Exactly 11 N

More than 11 N

• Question 23
60 seconds
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Q.

If you lean against a wall, the wall pushes back on you with a(n) weaker force.

True

False

• Question 24
30 seconds
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Q.

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

20 m/s2

0.5 m/s2

2 m/s2

120 N

• Question 25
30 seconds
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Q.

Find how much force the man will need to exert to move the car.