DW College Prep Physics A Final Exam Review

Question 1

What are the objects in the graph doing?

Accepted Answer

Speeding Up

Question 2

Refer to the graph. Which runner is the fastest?

Accepted Answer

Runner B

Question 3

What does the area under a velocity-time graph represent?

Accepted Answer

Displacement

Question 4

See slide on next page...

Accepted Answer

More energy goes into heating up the rug.

Question 5

A bike has a mass of 500 kg and accelerates at 2 m/s2. What is the force on the bike?

Accepted Answer

1000 N

Question 6

See picture on next page...

Accepted Answer

4.0 m ramp

Question 7

If the angle of the incline plane increases, which force vector will increase?

Accepted Answer

Parallel (B)

Question 8

When you use a spring scale to measure force. What form of energy helps to stretch the spring?

Accepted Answer

Elastic Potential Energy

Question 9

The arrows in the picture show that the car is traveling at...

Accepted Answer

Increasing Velocity

Question 10

The object is moving in a clockwise direction. What is the velocity at point C?

Accepted Answer

A

Question 11

A child's swing set swinging back and forth can be described as what type of motion?

Accepted Answer

2-dimensional

Question 12

The Earth orbiting around the sun is an example of _____.

Accepted Answer

Revolution

Question 13

See picture on next slide...

Accepted Answer

20 N

Question 14

See picture on next page...

Accepted Answer

Both have the same acceleration.

Question 15

A car travels in a circle with constant speed. What is the net force on the car?

Accepted Answer

Towards the center of the circle.

Question 16

How much work is done on a 40 N box that you lift 10 m?

Accepted Answer

400 J

Question 17

A car starts from rest and after 10 sec is moving at 50 m/s. What is the car's acceleration?

Accepted Answer

5 m/s2

Question 18

A rock has 200 J of PE at the top of a 100 m cliff. What is the KE when it falls past 50 m?

Accepted Answer

100 J

Question 19

What do air bags do in your car to reduce the force on you in the event of a collision?

Accepted Answer

Increase the time to decrease the force.

Question 20

Can a bullet have the same momentum as a truck?

Accepted Answer

Yes, if the bullet is fast and the truck is slow.

Question 21

A cheetah runs at 68 miles/hour. How far did the cheetah run in .38 hours?

Accepted Answer

25 miles

Question 22

See picture on next page...

Accepted Answer

Away from the ship.

Question 23

A ball being thrown straight up can be described as having a _____ path.

Accepted Answer

1-dimensional

Question 24

You push a cart to the right with a constant velocity. Identify the forces. Ignore Air Res.

Accepted Answer

Normal, Gravitational, Friction, Applied

Question 25

A bowling ball and a tennis ball are dropped from the same height on Earth. Which has more PE?

Accepted Answer

Bowling Ball

Question 26

The object is moving in a clockwise direction. What is the acceleration at point A?

Accepted Answer

D

Question 27

What is the person in the graph doing from 5-10 seconds?

Accepted Answer

Standing Still

Question 28

Sue whirls a yo-yo in a circle. What is the direction of the force that acts on the yo-yo?

Accepted Answer

Inward

Question 29

See picture on next slide...

Accepted Answer

No they are independent.

Question 30

See picture on next slide...

Accepted Answer

In a tangent line

Question 31

Using the velocity-time graph, what is the displacement from 1 to 4 seconds?

Accepted Answer

30 m

Question 32

After a watch "runs down," where does all the energy go?

Accepted Answer

To heat and sound.

Question 33

A rock is falling through the air. Which way does air resistance point?

Accepted Answer

Up

Question 34

The force exerted by an segment of rope by adjoining segments is what type of force?

Accepted Answer

Tension

Question 35

See picture on next slide...

Accepted Answer

Target

Question 36

Where would you have more mass, on Earth or on the moon?

Accepted Answer

Neither

Question 37

See picture on next page...

Accepted Answer

Both will give him the same amount of work.

Question 38

How does a vector quantity differ from a scalar quantity?

Accepted Answer

A vector has magnitude & direction. A scalar has magnitude.

Question 39

Why are seat belts more important in cars than in busses?

Accepted Answer

Busses have more inertia.

Question 40

Sitting on the center of a merry-go-round and spinning around is an example of _____.

Accepted Answer

Rotation

DW College Prep Physics A Final Exam Review

Questions 40

DW College Prep Physics A Final Exam Review

Questions 40