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

A 5 kg bowling ball traveling 6.2 m/s right strikes a 1.6 kg bowling pin at rest causing it to go 18 m/s to the right. How fast is the bowling ball traveling after the elastic collision?

0.44 m/s right

3.42 m/s right

1.12 m/s right

0.13 m/s right

2 / 10

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 / 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

When energy is lost from the system its lost as _______________.

kinetic energy

potential energy

both potential and kinetic energy

heat energy

Heat is not the reason for a cars engine and is a form that mechanical energy is converted to when not going into movement

5 / 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.

6 / 10

How is the force of gravity related to mass?

directly

inversely

inversely squared

7 / 10

What is the acceleration of a 1400 N skydiver when she encounters 600 N of air resistance? (use g = 9.8 m/s/s)

9.8 m/s/s

0 m/s/s

4.5 m/s/s

5.6 m/s/s

Find Net Force

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

Find Mass

F_w = mg
m =F_w/g
m = 1400/9.8 = 143 kg

Calculate acceleration

F_net= ma

a = F_net/m

a = 800/143 = 5.6 m/s²

8 / 10

Which is the term for the molecules that make up an object.

mass

weight

Matter is composed of the atoms/molecules that make up an object

9 / 10

Joe has a mass of 54 kg. What is his weight on the moon where the acceleration due to gravity is 1.62 m/s²?

539 N

87.5 N

54 N

5.51 N

F_w = mg

m = 54 kg

g = 1.62 m/s²

F_w = (54)(1.62) = 87.48 N

10 / 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

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 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

3 / 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.

4 / 20

A ball is thrown horizontally at 20 meters per second and takes 1.3 second to hit the ground. What happens to the time the object takes to fall if thrown much faster at 45 m/s?

It would take more than 1.3 seconds to hit the ground

It would take less than 1.3 seconds to hit the ground

It would take 1.3 seconds to hit the ground

The X and Y motion are independent. No matter how fast forward something is thrown, in the Y axis the object acts like it's falling. On earth an object falling from the same height would take the same time to hit the ground no matter how fast forward it is thrown or if it is just dropped. (ignoring air resistance)

5 / 20

What is the east component of the vector above?

26 m/s

41 m/s

16 m/s

65 m/s

You are trying to find the adjacent and have an angle and the hypotenuse

6 / 20

What is true about vector A and B as you see them above?

They have the same direction and a different magnitude

They have a different direction and the same magnitude

Both direction and magnitude are the same

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.

7 / 20

How much work is done when a force of 50N forward is applied to move a box 6 meters in the same direction?

0 J

8.3 J

50 J

300 J

W = Fd

W = (50)(6) = 300 J

8 / 20

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

base

fulcrum

standard

lever

9 / 20

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

10 / 20

What is net force of a 1400 N skydiver at terminal velocity?

0 N

1400 N up

1400 N down

At terminal velocity a person is no longer accelerating so net force is zero because air resistance force is equal to the weight force

11 / 20

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.

12 / 20

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

0 n

10 N

16.2 N

162 N

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

If there is constant motion there is no acceleration and the net force is zero. The frictional force must equal the force applied in the opposite direction so 162 N as well

13 / 20

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

Increases

Decreases

14 / 20

Which letter above represents normal force?

15 / 20

Which letter above represents weight?

16 / 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.

17 / 20

What does the slope of a position time graph determine?

displacement

velocity

acceleration

The rate at which the position or displacement is changing. This object goes from 16 meters to 8 meters or is going backwards for the 30 seconds. The straight line means the type of motion is constant.

Constant backward velocity

18 / 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.

19 / 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.

20 / 20

One ball is thrown down at 5 m/s and another is thrown down at 10 m/s at the same time. How will the distance between them change as they fall.

the 10 m/s second ball will keep getting further away

the 5 m/s ball will be catching up with the 10 m/s ball

they will maintain the same distance apart during the fall

The ball thrown down will always be traveling faster as they both change by 9.8 m/s²down

Since traveling faster the ball thrown downwards will always be getting further ahead

An acceleration of 9.8 m/s²down means a rock thrown

5 m/s down will be going 14.8 m/s a second later (going 14.8 meters in a second - if that rate was maintained)
10 m/s down will be going 19.8 m/s a second later (going 19.8 meters in a second - if that rate was maintained)

The one going faster will always be faster and getting further away

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