In order to INCREASE the potential energy of an object, you need to:

put the object lower to the ground

Explain what happens to the potential energy of a rock as it falls off the side of a cliff.

The potential energy decreases as the kinetic energy increases.

The kinetic energy decreases as the potential energy increases.

The kinetic energy decreases as the potential energy decreases.

The potential energy decreases as the kinetic energy decreases.

When riding a roller coaster, you go up and down many hills. As you get to the top of a roller coaster, what energy change is taking place.

Kinetic energy is changed into potential energy.

Potential energy is changed into kinetic energy.

Chemical energy is changed into heat energy.

Heat energy is changed into chemical energy.

In all of the energy transformations shown above, the total amount of energy __________.

remained the same when it transformed into another type of energy.

disappeared when it transformed into another type of energy.

decreased when it transformed into another type of energy.

What is the center of mass?

The average location of all of the mass in an object

The balancing point of an object

What is advisable when opening the cover of a tin of paint?

Use a 20 cm long flat tip screwdriver and apply a force as far as possible from the cover as possible.

Use my fingers and exert brute force.

Use a 15 cm long flat tip screwdriver and apply a force as near to the cover as possible.

A race car is more stable than a double decker bus because

it has a lower center of gravity.

it has a higher center of gravity.

A seesaw is unbalanced with two people of different masses sitting equal distances from the center. Which of the following will result in equilibrium?

Moving the smaller person further from the center.

The larger person moving further away from the center.

Moving the smaller person closer to the center.

Making the larger person do nothing.

The easiest way to open a heavy door is by applying the force

At the edge of the door far from the hinges

A person sits on a freely spinning lab stool that has no friction in its axle. When this person extends her arms,

her moment of inertia increases and her angular speed decreases.

her moment of inertia decreases and her angular speed increases.

her moment of inertia increases and her angular speed increases.

her moment of inertia increases and her angular speed remains the same.

A merry-go-round spins freely when Diego moves quickly to the center along a radius of the merry-go-round. As he does this, it is true to say that

the moment of inertia of the system decreases and the angular speed increases.

the moment of inertia of the system increases and the angular speed increases.

the moment of inertia of the system decreases and the angular speed remains the same.

the moment of inertia of the system decreases and the angular speed decreases.

When a rigid object rotates about a fixed axis, what is true about all the points in the object?

They all have the same angular speed.

They all have the same tangential acceleration.

They all have the same tangential speed.

They all have the same radial acceleration.

Two children, Jack and Jill, ride on a merry-go-round. Jack is at a greater distance from the axis of rotation than Jill. Which of the following are true statements?

Jack has a greater tangential speed than Jill.

Jill and Jack have the same tangential speed.

Jill has a greater angular speed than Jack.

Jill has a smaller angular speed than Jack.

Which has greater angular speed, a horse near the outside rail of a merry-go-round or a horse near the inside rail?

Neither - they both have the same angular speed

Physics Final Exam Review

Authored by Gregory Foster

11th - 12th Grade

Used 235+ times

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177 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The energy stored in an object is ________

Joule

Kinetic

Potential

Transformed

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The amount of kinetic energy in an object depends on its

mass and height

speed and mass

speed and height

height and velocity

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

This type of energy is caused by motion

Kinetic

Potential

Thermal

Electrical

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Use the diagram. Which car has 100 KE and 0 PE?

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which car has 75 KE and 25 PE?

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

__________ is stored energy.

Potential

Kinetic

None of the above

All of the above

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The faster an object moves, the ________ kinetic energy it has.

less

none of the above

all of the above

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Physics Final Exam Review

The energy stored in an object is ________

The amount of kinetic energy in an object depends on its

This type of energy is caused by motion

Use the diagram. Which car has 100 KE and 0 PE?

Which car has 75 KE and 25 PE?

__________ is stored energy.

The faster an object moves, the ________ kinetic energy it has.

When you are holding a book, energy is stored between the book and Earth; this type of energy is called ________ potential energy.

What kind of energy is in a moving skateboard?

What kind of energy is in a rock at the edge of a cliff?

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