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

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 / 10

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?

30.1 m/s

10 m/s/s

35.2 m/s

7 m/s

Actual speed would be the hypotenuse of the two vectors placed head to tail. You would do the Pythagorean Theorem.

The direction does not matter because it asks for speed which is a scalar.

3 / 10

What is the force of gravity between 96kg Joe and 87kg Jim when the distance between them is 0.20 meters?

1.39 x 10^-5 N

4.79 x 10^-3 N

1.87 x 10^4 N

2.79 x 10^-6 N

4 / 10

What is the tension in each of two ropes vertically suspending a 45 kg object? (use g = 9.8 m/s/s)

45 kg

441 N

0.218 N

221 N

Tension if a single rope would have the equal magnitude to the weight down. With two ropes both directed up, they are sharing the weight so divide by two.

F_w = mg

F_w = (45)(9.8) = 441 N

441/2 = 220.5 N

5 / 10

What is the air resistance force on a 1400 N skydiver at terminal velocity?

0 N

1400 N up

1400 N down

At terminal velocity net force is zero so air resistance must equal the skydivers weight or 1400 N but directed up

6 / 10

Which of Newton's Laws is most related to a larger object resisting a change of motion more than a less massive one?

First

Second

Third

Newtons First Law: Law of Inertia. An object at rest stays at rest and an object in motion stays in motion unless acted upon by an outside force. (More mass more inertia or resistance to change)

Newtons Second Law: Force causes acceleration (F=ma)

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.

7 / 10

Force and acceleration are ______________ related

directly

inversely

8 / 10

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

9 / 10

Which is almost always greater

kinetic friction

static friction

rolling friction

When an object is at rest (static) the surfaces between objects are settled and closer together. With surfaces closer together there is more interaction and therefore more static friction friction than kinetic.

10 / 10

What is the final velocity of a ball throw down at 10 m/s after two seconds?

19.8 m/s down

0 m/s

29.6 m/s down

9.6 m/s down

9.6 m/s up

Your score is

LinkedIn Facebook Twitter

20 Random Physics Questions from our Complete Test Bank

20 - Physics Questions

20 questions from our bank of first semester material

1 / 20

What type of collision is the following?

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

elastic collision

inelastic collision

neither

In an elastic collision objects maintain their shape and travel independently afterwards

In an inelastic collision at least one object changes its shape and heat is lost

2 / 20

A 5000 kg garbage truck traveling 10 m/s right hits a 1000 kg car traveling 2 m/s right. If the garbage truck is traveling 2 m/s right after the collision, what is the final velocity of the car?

10 m/s right

42 m/s right

4 m/s right

27 m/s right

3 / 20

How much force is required to stop Big Mac a 135 kg football player running at 6.0 m/s in 0.050 seconds?

16200 N

8734 N

14200 N

452 N

4 / 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

5 / 20

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

0 m/s

10 m/s

20 m/s

30 m/s

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.

6 / 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

7 / 20

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.

8 / 20

Potential energy is dependent on __________________.

location

motion

heat

Location or height which is a type of location

how far you pull the a bow back or how high you lift an object

See types of distance and height in the equations below

Potential energy is equal to the work done, force applied over a distance, to store it (PE = Fd)

Gravitational potential energy is equal to its weight (mass times gravity) lifted a height to store it (GPE = mgh)

9 / 20

Mechanical Energy is composed of ____________.

kinetic energy

potential energy

both potential and kinetic energy

heat energy

Mechanical energy is composed of potential energy plus kinetic energy. Its the total of the moving and what could be released as moving energy.

ME = KE + PE

10 / 20

How far away should a 0.50 kg mass be placed on the left side of a fulcrum to balance a 2.0 kg mass 0.50 m on the right side of a fulcrum?

0.5 m

1.0 m

1.5 m

2.0 m

11 / 20

What is the term for a pivot point where rotation can occur?

base

fulcrum

standard

lever

12 / 20

Solve for the tension in one of the ropes suspending the object above.

5.4 N

7.35 N

8.5 N

10.3 N

13 / 20

What is the air resistance force on a 1400 N skydiver at terminal velocity?

0 N

1400 N up

1400 N down

At terminal velocity net force is zero so air resistance must equal the skydivers weight or 1400 N but directed up

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

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

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 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

19 / 20

What is your average velocity after going 10 meters east followed by 20 meters west in 10 seconds?

1 m/s east

1 m/s west

3 m/s east

3 m/s west

1 m/s

3 m/s

What is your velocity after going 10 meters east followed by 20 meters west in 10 seconds?
Velocity is a vector so direction matters so displacement divided by time. Make the directions into signs.
10 m east is +10
20 m west is -20
now calculate displacement and divide that by time ((+10)+(-20))/10
-10/10 = -1 m/s
turn the negative back into a direction 1 m/s west

20 / 20

What is your distance after going 10 meters east followed by 3 meter west?

13 meters east

13 meters

7 meters east

7 meters west

7 meters

Distance is a scalar that has no direction. You do nothing with the direction and just add all the individual magnitudes up (10 + 3) here.

You can't put a direction on the final answer since it is a measure of how far you went totally and not a direction.

You should not put a direction on the final answer either since this is not a measure of where you are located but just how far you went in any direction.

Your score is

LinkedIn Facebook Twitter

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