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

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 / 10

A ball is kicked horizontally from a 45 meter tall cliff at 20 m/s. How far from the base of the cliff does it land?

46 m

92.1 m

60.6 m

23.5 m

3 / 10

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.

4 / 10

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

350

5 / 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

6 / 10

Which would give the least torque if all forces applied at point A, B, C, and D were the same?

D's force is directed parallel to the lever, therefore produces no torque (no torque)

C's torque is the greatest distance and completely perpendicular (most torque)

A and B's torque is less than C but greater than D. Without knowing the angle for B or actual distance for A you can't determine which of these two is greater.

7 / 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

8 / 10

How much force is required to keep an object in motion?

0 N

It's Weight

Depends on its mass

Newtons first law states an object in motion will stay in motion and an object at rest will stay at rest. No force is needed. Think of an asteroid in space

9 / 10

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

Increases

Decreases

Larger incline means more force downhill

10 / 10

Which letter above represents weight?

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

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

2 / 20

A scalar 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 / 20

What is the Actual Mechanical Advantage when 300 N of force is required to lift a 3000 N object?

0.1

4 / 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

GPE = mgh or GPE = F_wh

You are given weight not mass so use this form:

GPE = mgh = (50)(3.5) = 175 J

5 / 20

How much potential energy is in a 50kg boulder 3.5m off the ground?

1.43 J

1715 J

3862 J

6732 J

6 / 20

What is the force of attraction between Isaac Newton and his 0.15 kg apple the moment it is 0.3 meters away if his weight was 83.6 kg?

9.3 x 10^-9 N

2.8 x 10^-9 N

140 N

40 N

7 / 20

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.

8 / 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.

9 / 20

How much force is in a spring that has a spring constant of 4400 N/m that is displaced 0.03 m?

102 N

65 N

321 N

132 N

10 / 20

What happens to the magnitude of force required to stretch a spring 0.1 m when the spring constant increases?

force must increase

force must decrease

force stays the same

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

Which of Newton's Laws describes an objects resistance to a change in motion or rest?

Newton's First Law

Newton's Second Law

Newton's Third Law

Newtons First Law: Law of inertia

This is about a resistance to change in motion. An object at rest stays at rest and an object in motion stays in motion unless acted upon by an outside force.

13 / 20

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

Increases

Decreases

Larger incline means more force downhill

14 / 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

15 / 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.

16 / 20

One ball is thrown up and another is dropped. Which ball will have a greater downward velocity 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.

The ball dropped would have a head start and always be traveling faster downwards

17 / 20

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

18 / 20

A change in displacement over time is ______________.

displacement

velocity

acceleration

distance

v = (Δx)/t

The change in displacement over time is the definition of velocity. See the equation above

19 / 20

What it the direction of 15 meters north?

15 meters

15 meters north

meters

north

north is the direction the 15 m is pointing

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