Exploring Energy Transfer: Potential and Kinetic Energy

What type of energy is stored by the Sun?

• Elastic potential energy

• Nuclear energy

• Chemical energy

• Kinetic energy

Tags

NGSS.HS-ESS1-1

What does the potential energy formula PE = mgh represent?

• PE decreases with height

• PE is proportional to mass and height

• PE depends only on mass

• PE is independent of gravity

What is the unit of energy in the metric system?

• Newton

• Pascal

• Joule

• Watt

How does the kinetic energy change if the velocity of an object is doubled?

• It remains the same

• It doubles

• It quadruples

• It halves

How is kinetic energy calculated?

• KE = 1/2 mgh

• KE = mgh

• KE = 1/2 mv^2

• KE = mv

Tags

NGSS.HS-PS3-2

What remains constant in a freefall scenario?

• Potential energy

• Kinetic energy

• Mechanical energy

• Velocity

Tags

NGSS.HS-PS3-2

What happens to the potential energy as an object falls?

• It fluctuates

• It stays the same

• It decreases

• It increases

Tags

NGSS.MS-PS3-2

What does the term 'mechanical energy' refer to?

• The energy due to position only

• The sum of potential and kinetic energy

• The energy due to motion only

• The energy stored in chemical bonds

Tags

NGSS.MS-PS3-5

What must be true for the simplified kinetic energy equation to be valid?

• The object must start from rest

• The object must have constant velocity

• The object must be in motion

• There must be no gravitational force

What is the effect of friction on mechanical energy?

• It decreases it

• It increases it

• It has no effect

• It converts it to potential energy