Module 10 Lesson 2 The Many Forms of Energy

Multiple Choice

Which of the following best describes the process that transfers energy between a system and the external world, as discussed in the slides?

• Work

• Heat

• Friction

• Gravity

Multiple Choice

Which of the following equations correctly represents translational kinetic energy?

• KE = 1/2 mv^2

• KE = 1/2 Iω^2

• KE = mgh

• KE = 1/2 kx^2

Multiple Select

Select all the correct statements about rotational kinetic energy.

• It is the kinetic energy due to rotational motion.

• It can be calculated using the moment of inertia and angular velocity.

• It is the same as translational kinetic energy.

• It is represented by KE_rot = 1/2 Iω^2.

Multiple Choice

Which of the following best describes gravitational potential energy?

• The energy stored due to an object's motion

• The energy stored due to the gravitational force between objects

• The energy stored due to an object's temperature

• The energy stored due to an object's electric charge

Multiple Choice

A bricklayer carries 30.2 kg of bricks to a height of 11.1 m. What is the gravitational potential energy of the brick-Earth system at the third floor?

• 3.29 J

• 332 J

• 3290 J

• 302 J

Multiple Select

Which of the following are forms of energy mentioned in the slides?

• Chemical energy

• Nuclear energy

• Thermal energy

• Electrical energy

Multiple Choice

Which of the following is carried by electromagnetic waves?

• Radiant energy

• Electrical energy

• Mass

• Thermal energy

Multiple Choice

Which energy is best associated with a stretched rubber band?

• gravitational potential energy

• elastic potential energy

• kinetic energy

• thermal energy

Multiple Choice

Which energy is calculated by finding the product of one-half the mass and the square of the velocity?

• rotational kinetic energy

• gravitational potential energy

• translational kinetic energy

• elastic potential energy

Multiple Choice

What is the gravitational potential energy of a 3.0-kg rock that is 12.4 m above the ground?

• 360 J

• 120 J

• 37 J

• 15 J

Multiple Choice

What is a reference level?

• the position where GPE is at a maximum

• the highest position of the object

• the lowest position of the object

• the position where GPE is defined to be zero

Multiple Choice

Which describes the transformation of energy as a ball is thrown up into the air and reaches its maximum height?

• Elastic potential energy changes to gravitational potential energy.

• Gravitational potential energy changes to kinetic energy.

• Kinetic energy changes to gravitational potential energy.

• Kinetic energy changes to elastic potential energy