Complete Physics Assessment

Get more physics practice and get that A. Take a 10 or 20 question physics full physics assessment randomized all questions in our test bank.

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10 Random Physics Questions from our Complete Test Bank

10 - Physics Questions

10 questions from our bank of first semester material

1 / 10

If a ball is thrown with a Y component of velocity of 30 m/s what is its acceleration at the top of its flight path?

0 m/s/s down

10 m/s/s down

30 m/s/s down

30 m/s/s up

The acceleration in the air is always 10 m/s² down. This is how much velocity is changing every second. After three seconds starting from a velocity of 30 m/s up the ball has a velocity of 0 m/s at the top. The acceleration is still 10 m/s² down, so one second later the ball would be going 10 m/s down, and 20 m/s down a second after that, then 30 m/s down when returning to the same height.

2 / 10

A ball is thrown horizontally at 20 meters per second and takes 1.3 second to hit the ground. What happens to the time the object takes to fall if thrown much faster at 45 m/s?

It would take more than 1.3 seconds to hit the ground

It would take less than 1.3 seconds to hit the ground

It would take 1.3 seconds to hit the ground

The X and Y motion are independent. No matter how fast forward something is thrown, in the Y axis the object acts like it's falling. On earth an object falling from the same height would take the same time to hit the ground no matter how fast forward it is thrown or if it is just dropped. (ignoring air resistance)

3 / 10

What is the centripetal force of a 50 kg girl is bicycling in circles with a radius of 5.00 m when it takes 12 s to make one rotation?

4.2 N

12 N

43 N

68 N

4 / 10

What is the tangential velocity of a 50 kg girl is bicycling in circles with a radius of 5.00 m when it takes 12 s to make one rotation?

1.2 m/s

2.6 m/s

4.9 m/s

8.3 m/s

5 / 10

The inward force that causes circular motion is _________________.

centrifugal force

normal force

centripetal force

round force

Inertia makes an object want to go forward at a constant rate if in motion. Centripetal force pulls that object inwards making its motion circular.

6 / 10

What would happen to the force of gravity if you doubled the mass of one object and doubled the distance?

double the force

one half the force

one fourth the force

nine times

7 / 10

95kg Joe jumps off a 0.8kg skateboard and accelerates at 1.5 m/s/s right what is the acceleration of the skateboard?

98 m/s/s right

178 m/s/s left

114 m/s/s left

0.0126 m/s/s left

8 / 10

What is the downhill force on a 4.0 kg object on a 25° Incline Plane?

0.41 N

4.0 N

16.6 N

35.5 N

9 / 10

What type of motion is seen in this graph?

constant forward velocity

constant backwards velocity

rest

acceleration

deceleration

On a P/T graphs the slope is velocity. The slope here is flat so no velocity. Another way to think about it is by what is happening in the graph. The object went from 16 meters to 16 meters in 30 seconds. Therefore is in the same place and did not move.

10 / 10

15 m east is a _____________.

scalar distance

scalar displacement

scalar speed

scalar velocity

vector distance

vector displacement

vector speed

vector velocity

15 m is a magnitude and east is a direction. This is the vector displacement having both magnitude and direction from the origin to the end.

Your score is

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20 Random Physics Questions from our Complete Test Bank

20 - Physics Questions

20 questions from our bank of first semester material

1 / 20

What is the east component of the vector above?

26 m/s

41 m/s

16 m/s

65 m/s

You are trying to find the adjacent and have an angle and the hypotenuse

2 / 20

Tom pushes a 50 kg box up a 15 meter incline plane by pushing with a force of 100 N. The end result is that the box was lifted 2 meters. What was the efficiency of this simple machine?

32.1%

66.7%

73.1 %

32 %

3 / 20

What is the efficiency of 4 meters ramp used to lift a 1400 N sled full of toys 1 meter off the ground pushing with a force of 500 N?

110 %

45 %

70 %

62 %

4 / 20

What happens to mechanical energy as an object falls under ideal conditions?

It increases

It decreases

It stays the same

Mechanical energy stays the same as potential energy gets converted to kinetic energy

Mechanical Energy (PE + KE) stays the same

Potential energy goes down

Kinetic energy goes up

5 / 20

How much work is done when a force of 50N forward is applied to move a box 6 meters in the same direction?

0 J

8.3 J

50 J

300 J

W = Fd

W = (50)(6) = 300 J

6 / 20

The time it takes for one rotation is the ___________.

frequency

period

displacement

radius

The period is the time it takes for an event that occurs over and over to happen. In this case it is time to travel in a circle

7 / 20

What is the acceleration of a 1400 N skydiver at terminal velocity?

0 m/s/s

9.8 m/s/s down

9.8 m/s/s up

No net force and no acceleration at terminal velocity

8 / 20

When hitting a baseball you apply 150 N of force with the bat on the ball. How does the magnitude of force the ball applies to the bat compare?

Less than 150 N

More than 150 N

Exactly 150 N

Newtons Third Law: All forces are paired, equal and opposite. When hit a baseball with 15 Newtons of force forward it hits you with 15 Newtons of force backwards. Magnitude means ignore the direction and just look at the number and unit.

9 / 20

When a bug hits your windshield. Which of the following are true?

The bug applies an equal of force to your windshield as your windshield to the bug

The windshield applies more force to the bug than the bug to the windshield

The bug applies more force to the windshield than the windshield to the bug

Newtons Third Law: All forces are paired, equal and opposite. When you push on an object with 15 Newtons of force it pushes back on you with 15 Newtons of force. The forces are equal.

10 / 20

Force and acceleration are ______________ related

directly

inversely

11 / 20

What is the acceleration on a 5 kg object that has a force of 20 N applied to the right and 5 newtons applied to the left?

5 m/s/s right

3 m/s/s left

5 m/s/s left

3 m/s/s right

12 / 20

What is the net force on a 5 kg object that has a force of 20 N applied to the right and 5 newtons applied to the left?

25 N right

15 N left

25 N left

15 N right

13 / 20

Joe has a mass of 54 kg. What is his weight on the moon where the acceleration due to gravity is 1.62 m/s²?

539 N

87.5 N

54 N

5.51 N

F_w = mg

m = 54 kg

g = 1.62 m/s²

F_w = (54)(1.62) = 87.48 N

14 / 20

What is the minimum force required to start a 0.5 kg brick moving on a wood surface?

0 N

0.45 N

2.2 N

2.9 N

10.9 N

15 / 20

A 0.5 kg rock and a 150 kg boulder were dropped from a cliff 65 meters high. Which one would hit the ground first ignoring air resistance?

0.5 kg rock

150 kilogram boulder

both at the same time

Neglecting air resistance. Any mass would take the same time to hit the ground no matter how massive or minute. Many times a question may say in a vacuum which means there is no air resistance since air particles are sucked out removed from a vacuum.

16 / 20

What is the velocity of the object in this graph between 15 and 30 seconds

0.18 m/s

0.27 m/s

0.67 m/s

3.75 m/s

600 m/s

17 / 20

What is the maximum these two vectors can be when added together?

The maximum is when you put the two vectors in the same direction head to tail. Had to tail means the second starts where the last left off.

18 / 20

What type of motion is seen in this graph?

constant forward velocity

constant backwards velocity

rest

acceleration

deceleration

A straight line means something is constant. A straight sloped up line on a position time graph meant the position is moving at a constant rate or constant velocity.

19 / 20

What is the displacement of a ball thrown up at 25 m/s after 4 seconds in the air? (Note the ball can be below the ground)

131.8 meters down

60.8 meters up

21.6 meters up

56.8 meters down

24.6 meters down

20 / 20

Pick the right equation and solve the problem:

A duck flew 500 meters in 40 seconds. How fast was the duck flying?

0.08 m/s

12.5 m/s

3.7 m/s

20000. m

Your score is

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Resources

StickMan Physics Home Page
Stickman Physics Table of Contents: Use the search bar or click here to easily find a unit or topic
Physics Equation Sheet: commonly used equations, variables, and units
Rule of Ones: analyzing equations to determine how other variables change
Holdensclass.com: Video walk-through of Many Physics Concepts