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 unit for momentum?

m/s

kg∙m/s

N∙m/s

2 / 10

A vector includes

magnitude

direction

both magnitude and direction

A scalar has a magnitude only which includes a number and unit (15 meters)

A vector has a magnitude and a direction (15 meters north)

3 / 10

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

4 / 10

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

5 / 10

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

increases

decreases

stays the same

6 / 10

How much tension must be in a rope attached above an object if the normal force on a 500 N object is 100 N.

300 N up

200 N up

400 N up

600 N up

7 / 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

8 / 10

What would happen to your weight if you were on a planet with twice the acceleration due to gravity?

It would half

It would double

It would stay the same

It would quadruple

9 / 10

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.

10 / 10

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

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 type of collision do you have when both momentum and kinetic energy are conserved?

elastic collision

inelastic collision

neither both momentum and kinetic energy are never 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.

2 / 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)

3 / 20

What is the minimum 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

4 / 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 %

5 / 20

What happens to kinetic 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

6 / 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)

7 / 20

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

8 / 20

What is the spring constant of a spring displaced 0.1 meters when 400 N of force is applied?

40 N/m

4000 N/m

384 N/m

10 N/m

9 / 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

10 / 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

11 / 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.

12 / 20

Which of Newton's Laws is most related to all the forces on an object causing the object to accelerate?

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.

Force applied equals the magnitude of force of friction in constant motion. If you find the force of friction (F_f), you know the Force applied (F_A)

13 / 20

What is the force required to keep a 0.5 kg brick in constant motion on a wood surface?

0 N

0.45 N

2.2 N

2.9 N

10.9 N

14 / 20

What is the acceleration of this object over the 30 second time period?

0.2 m/s/s

0.4 m/s/s

2.5 m/s/s

360 m/s/s

Slope of a velocity time graph is acceleration. Either find the slope or turn it into an equations picking givens off the graph (either way you are doing the same thing)

15 / 20

Which 2D Vector drawing correctly describes the overall and components of South of East

16 / 20

What type of motion is seen in this graph?

constant forward velocity

constant backwards velocity

rest

acceleration

deceleration

Went from 16 meters to 8 meters (backwards 8 meters) in 30 seconds. The slope on a position or displacement time graph is equal to velocity

Constant velocity backwards

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

variable: unit (unit variable)

x : meters (m)

v, v_i, v_f : meters/second (m/s)

a: meters/second² (m/s²)

t: (s)

18 / 20

Pick the right equation and solve the problem:

What is the acceleration of a person that accelerates from 10 m/s to 30 m/s in 5 seconds?

2 m/s/s

8.7 m/s/s

16.2 m/s/s

4 m/s/s

19 / 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 for acceleration is m/s²

20 / 20

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

13 meters east

13 meters

7 meters east

7 meters west

7 meters

Displacement is a vector that includes direction. Make the direction a sign (east positive and west negative) before you add (10 + (-3)) = -7 meters which becomes 7 meters 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