Energy, Work, and Power

Energy, Work, and Power

Assessment

Flashcard

Science

12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

Student preview

quiz-placeholder

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the definition of work in physics?

Back

Work is defined as the product of the force applied to an object and the distance over which that force is applied, represented by the equation W = Fd.

2.

FLASHCARD QUESTION

Front

What is the formula for calculating kinetic energy?

Back

The formula for calculating kinetic energy (KE) is KE = 1/2 mv², where m is the mass of the object and v is its velocity.

3.

FLASHCARD QUESTION

Front

How does potential energy change when an object is lifted?

Back

Potential energy increases when an object is lifted because it gains height relative to a reference point, calculated by PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

4.

FLASHCARD QUESTION

Front

What is power in the context of work?

Back

Power is the rate at which work is done or energy is transferred, calculated using the formula P = W/t, where W is work and t is time.

5.

FLASHCARD QUESTION

Front

If two people lift the same weight for the same distance, how does their power output differ?

Back

Power output differs based on the time taken to lift the weight; the person who lifts it faster exerts more power.

6.

FLASHCARD QUESTION

Front

What is the relationship between mass and kinetic energy?

Back

Kinetic energy is directly proportional to the mass of an object; as mass increases, kinetic energy increases if velocity remains constant.

7.

FLASHCARD QUESTION

Front

What happens to the kinetic energy of an object if its speed doubles?

Back

If the speed of an object doubles, its kinetic energy increases by a factor of four, since KE = 1/2 mv².

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?