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.

Use our equation sheet for guidance on the equations.

Physics Equation Sheet

10 Random Physics Questions from our Complete Test Bank

10 - Physics Questions

10 questions from our bank of first semester material

1 / 10

What is the change in momentum of an 85 kg person running at 8 m/s forward when hitting a wall and bouncing back at 3 m/s?

-935 kg∙m/s

435 kg∙m/s

-1251 kg∙m/s

894 kg∙m/s

2 / 10

When energy is lost from a system it is most likely ________________.

destroyed

converted to heat

converted to mechanical energy

You cannot create work or energy. In a perfect (ideal) scenario W_in = W_out but it’s impossible for W_outto be more. In real situations W_outis less because heat is lost.

3 / 10

Which graph correctly shows how distance relates to force using the Law of Universal Gravitation?

Distance is in the denominator and squared in the universal gravitation equation below. There is a inverse squared relation. Force decreases not proportionately more early since the d is squared. If you double distance the force goes down to 1/4.

4 / 10

What happens to tangential velocity if you increase the radius?
It _________

increases

decreases

stays the same

5 / 10

Joe has a mass of 54 kg. What is his weight on the earth?

529 N

87.5 N

54 N

5.51 N

F_w = mg

m = 54 kg

g = 9.8 m/s²

F_w = (54)(9.8) = 529.2 N

6 / 10

What is the magnitude of net force when 162 N of force is required to keep an object in constant motion?

0 n

10 N

16.2 N

162 N

Constant motion means no acceleration. Net force (sum of overall forces on an object) must be zero if there is no acceleration.

7 / 10

What is the correct description of this exact angle?

17 Degrees North of West

17 Degrees West of South

17 Degrees North of East

17 Degrees South of West

8 / 10

What does the slope of a velocity time graph determine?

displacement

velocity

acceleration

Acceleration which is the rate at which the (Y axis) velocity on a V/T graph is changing.

In the graph provided the object is going 8 meters every seconds (so is moving) but no slope or acceleration.

9 / 10

Pick the right equation and solve the problem:

How far did Tony travel when he constantly accelerated from 5 to 15 m/s in 5 seconds?

50 m

72.1 m

16.8 m

35 m

10 / 10

What it the unit of 15 meters north?

15 meters

15 meters north

meters

north

The unit defines what the 15 is. 15 what?

meters

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

A 0.25 kg ball of clay is thrown at 6 m/s right towards a 0.8 kg toy car at rest. How fast is the clay stuck to the car traveling after the collision?

1.4 m/s right

4.3 m/s right

1.7 m/s right

0.45 m/s right

2 / 20

What type of collision do you have when momentum is conserved but kinetic energy is not?

elastic collision

inelastic collision

neither both momentum and kinetic energy are always conserved

In an elastic collision momentum and kinetic energy are conserved

In an inelastic collision momentum is conserved but kinetic energy is not

Kinetic energy is only a part of the entire energy. The entire energy would be conserved in either case but the definition is only talking about kinetic energy.

3 / 20

A bullet shot horizontally at 1400 m/s lands 300 meters downrange. From what height was is shot from?

0.123 m

0.224 m

1.23 m

1.81 m

4 / 20

In the pilots perspective, how does a package dropped from a plane look like it falls? (Neglecting air resistance)

straight down

forward faster than the plane

behind slower than the plane

The package appears to fall straight down because the X component of velocity of the plane and package are the same.

5 / 20

What is the actual speed of a ball is thrown with an X component velocity of 7 m/s forward and a Y component of velocity of 30 m/s up when at the top of it's flight path?

30.1 m/s

10 m/s/s

35.2 m/s

7 m/s

At the top of a flight path the y component of velocity is 0 m/s temporarily so speed is only made up of the horizontal component. So 7 m/s here.

6 / 20

What is the direction of the resultant of 50 meters north and 72 meters west?

22 degrees south of west

66 degrees north of west

39 degrees west of north

55 degrees west of north

7 / 20

What is the maximum magnitude of vector A and B in any arrangement?

Magnitude includes the number and a unit. Since no numbers are involved the length of the arrow represents the magnitude. The directions are pointing the same way but the lengths are different.

Maximum is B + A or A + B

8 / 20

What is the minimum magnitude of vector A and B in any arrangement?

B + A

B - A

Greater than B but less than B + A

Magnitude includes the number and a unit. Since no numbers are involved the length of the arrow represents the magnitude. The directions are pointing the same way but the lengths are different.

Maximum is B + A or A + B

9 / 20

When energy is lost from a simple machine which of the following must be less

work output

work input

distance output

force output

You cannot create work or energy. In a perfect (ideal) scenario W_in = W_out but it’s impossible for W_outto be more. In real situations W_outis less because heat is lost.

10 / 20

Kinetic energy is dependent on __________________.

location

motion

heat

Movement: see how KE has velocity in the equation below

KE = ½ mv²

11 / 20

What is the tension in a rope suspending a 45 kg object? (use g = 9.8 m/s/s)

45 kg

441 N

0.218 N

221 N

Tension up would have the equal magnitude to the weight down

F_w = mg

F_w = (45)(9.8) = 441 N

12 / 20

What is the net force when a 1400 N skydiver encounters 600 N of air resistance?

0 N

800 N down

800 N up

2000 N down

2000 N up

What is the net force when a 1400 N skydiver encounters 600 N of air resistance?

1400 N weight which is a vector directed down and mathematically -1400

600 N air resistance is opposite of motion so up and mathematically is +600

add the vectors together with their signs to get net force

-1400 + 600 = - 800 N or 800 N down

13 / 20

What is the net force in the picture above

7 N right

22 N right

8 N left

52 N left

30 left is -30
15 right is +15
7 right is +7

Add them together and turn the sign back into a direction (-30 + 15 + 7 = -8)

8 Newtons Left

14 / 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

15 / 20

Which letter above represents the parallel force?

16 / 20

What does the slope of a velocity time graph determine?

displacement

velocity

acceleration

Acceleration which is the rate at which the (Y axis) velocity on a V/T graph is changing.

In the graph provided the object is going 8 meters every seconds (so is moving) but no slope or acceleration.

17 / 20

What type of motion is seen in this graph?

constant forward velocity

constant backwards velocity

rest

acceleration

deceleration

On a V/T graphs the slope is acceleration. The slope here is sloped so there is acceleration. Another way to think about it is by what is happening in the graph. The object went 0 m/s to 12 m/s during the 30 seconds. They sped up during the entire time.

18 / 20

One ball is thrown up and another is dropped. Which ball will have a greater acceleration after 2 seconds?

the ball thrown up

the ball dropped

both will be the same

The acceleration is always 9.8 m/s²down or averaged to 10 m/s²down

It does not matter what happened to get it there. Thrown up, dropped, or thrown down they all have different velocities but those velocities change by 9.8 m/s²down

19 / 20

A change in velocity over time is ______________.

displacement

velocity

acceleration

distance

a = (Δv)/t

The change in velocity divided by time is the definition of acceleration. See the equation above

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