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 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

2 / 10

Kinetic energy is dependent on __________________.

location

motion

heat

Movement: see how KE has velocity in the equation below

KE = ½ mv²

3 / 10

How much potential energy does a 568 N ballerina have when she leaped 0.35 meters off the ground?

6.3 J

20 J

199 J

1990 J

GPE = mgh or GPE = F_wh

you are given weight not mass so use this form:

GPE = F_wh = (568)(0.35) = 198.8 J

4 / 10

What is your mass if the attractive force from the 55 kg person 2.0 meters across the table is 4.586 x 10^-8 N? (when rounded to two significant figures)

340000 kg

25 kg

50 kg

63 kg

150000 kg

5 / 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

6 / 10

What does a G having a value of 6.67 x 10^-11 tell you about the force of gravity between any two object?

It is very strong

It is very weak

it is always 9.8 m/s/s

G is a very small number 0.0000000000667 and therefore it takes huge masses like planets to feel the attraction to something. You cant feel the attraction to your neighbor, but there is one. You can feel the attraction to earth.

7 / 10

Which of Newtons Laws are best represented by this scenario.

If you push on a wall with 50 N of force, the wall pushed on you with 50 N of force

Newton's First Law

Newton's Second Law

Newton's Third Law

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.

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

What happens to the downhill force as the angle of incline increases?

Increases

Decreases

Larger incline means more force downhill

10 / 10

Pick the right equation:

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

How far is displacement or x

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

How much torque would be provided by a 15N force the direction of A above if it was 0.10 meters away from the bolt?

1.5 Nm cw

1.5 Nm ccw

150 Nm cw

150 Nm ccw

2 / 20

Impulse is equal to

change in momentum

force times time

mass times change in velocity

all choices

The main impulse equation if J=Ft
Impulse is also equal to change in momentum
Change in momentum is equal to mass times change in velocity

3 / 20

What angle would you throw a ball to get the greatest Y axis distance?

25° to the horizontal

45° to the horizontal

65° to the horizontal

90° to the horizontal

The greater the angle to the horizontal the further up but less downrange. Directly up or 90° would get you the greatest height (Y axis distance)

4 / 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

5 / 20

A 460 N box is hoisted above a truck by John who applies 60 N of force. What is the actual mechanical advantage of the pulley system?

0.13

7.67

27600

2760

6 / 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.

7 / 20

Simple machines can't be used to multiply _________________.

Force

Distance

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. Since W=(F)(d) you create the equation (F_in)(d_in)=(F_out)(d_out). This last equation shows how you can multiply force or distance

8 / 20

What happens to potential 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

9 / 20

A pool ball is flung off of a 0.68 m high table and the ball hits the floor with a speed of 6.0 m/s. How fast was the ball moving when it left the pool table?

3.23 m/s

4.76 m/s

6.34 m/s

22.31 m/s

10 / 20

What is the unit of energy?

Joules (J) is the unit for energy (ME,PE,KE,Heat, or work)

Work is the transformation of one form of energy to another.

11 / 20

Which direction does an object accelerate?

Always directed up

Always directed down

Always directed the direction of the net force

Acceleration is always in the direction of the net force. If you push a box to the right, with an overall or net force to the right, the object will accelerate to the right.

12 / 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.

13 / 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

14 / 20

What is the weight of a 4.0 kg object on a 25° frictionless Incline Plane? (Use g = 9.8 m/s²)

0.41 N

4.0 N

9.8 N

39.2 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 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.

17 / 20

Which variable is bold in the following question:

How fast was Sam traveling if he is traveling at 16 m/s after accelerating at 2 m/s² for 25 meters?

A) v_i

B) v_f

C) a

D) t

E) x

F) v

the unit is (m/s) so its a velocity but there is acceleration so it is not just v

he is traveling at 16 m/s after accelerating at 2 m/s² so we know the final and the question asks for the initial

v_i = ?

18 / 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

19 / 20

What it the magnitude of 15 meters north?

15 meters

15 meters north

meters

north

Magnitude is the number and unit: 15 meters

without any direction

20 / 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

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