Conservation of Energy (23-24)

What is the formula for calculating kinetic energy?

Which of the following scenarios best represents potential energy?

• A car speeding down a highway

• Water flowing over a dam

• A book resting on a table

• A ball held at a height above the ground

Tags

NGSS.MS-PS3-2

In a closed system, the conservation of energy principle asserts that:

• Energy can be created but not destroyed

• Energy can be destroyed but not created

• Energy can neither be created nor destroyed, only transformed

• Energy can be both created and destroyed

Tags

NGSS.HS-PS3-4

What does an energy diagram typically show?

• The amount of work done by a force

• The transformation of energy from one form to another

• The velocity of an object over time

• The acceleration of an object over time

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-3

Mechanical energy is the sum of which types of energy?

• Kinetic and potential energy

• Thermal and chemical energy

• Nuclear and electrical energy

• Magnetic and elastic energy

If a roller coaster is at the top of a hill, what type of energy is at its maximum?

• Kinetic energy

• Potential energy

• Thermal energy

• Chemical energy

Tags

NGSS.MS-PS3-2

What happens to the kinetic energy of an object if its velocity is doubled?

• It remains the same

• It doubles

• It quadruples

• It is halved

Which of the following is a correct expression for potential energy?

The principle of conservation of energy implies that in a pendulum swing, at the lowest point, the pendulum has:

• Maximum potential energy and minimum kinetic energy

• Maximum kinetic energy and minimum potential energy

• Equal amounts of kinetic and potential energy

• No kinetic or potential energy

Tags

NGSS.HS-PS3-2