Energy, Work, and Power Review

What is the definition of energy?

• Energy is the ability to create matter.

• Energy is the ability to do work.

• Energy is a type of force.

• Energy is the same as power.

Name three forms of energy.

• potential energy, kinetic energy, sound energy

• chemical energy, nuclear energy, radiant energy

• mechanical energy, thermal energy, electrical energy

• gravitational energy, electromagnetic energy, solar energy

What is potential energy?

• The energy possessed by an object due to its color.

• The energy possessed by an object due to its motion.

• The energy possessed by an object due to its temperature.

• The energy possessed by an object due to its position to Earth.

Tags

NGSS.MS-PS3-2

Give an example of an object with high potential energy.

• Stretched rubber band or a book placed on a high shelf

• A piece of paper lying on a table

• A feather

• A deflated balloon

Tags

NGSS.MS-PS3-2

What is kinetic energy?

• The energy possessed by an object due to its motion.

• The energy possessed by an object due to its temperature.

• The energy possessed by an object due to its position.

• The energy possessed by an object due to its rest.

Tags

NGSS.HS-PS3-2

What is the formula to calculate kinetic energy?

• KE = m * v^2

• KE = 1/2 * m * v

• KE = m * v

• KE = 1/2 * m * v^2

What is power?

• Strength or force

• Energy required to work

• Force times distance

• The rate at which work is done.

What is the unit of power?

• kilogram

• second

• watt

• meter

What is work?

• Force x Displacement

• Work / time

• mass x gravity x height

• 1/2 x mass x velocity squared

What is the formula to calculate work?

• W = F / d

• W = F - d

• W = F + d

• W = F x d