What is the equation linking kinetic energy, mass, and velocity?

• Eₖ = 0.5mv²

• Eₖ = mv²

• Eₖ = 0.5m²v

• Eₖ = mv

What are the units of energy?

• Joules

• Watts

• Newtons

• Kilograms

What is the equation linking gravitational field strength, gravitational potential energy, and height?

• Eₚ = mgh

• Eₚ = mg/h

• Eₚ = mh/g

• Eₚ = gh/m

What is the definition of power?

• Power is the rate of transfer of energy or the rate of doing work

• Power is the amount of energy stored

• Power is the force applied over a distance

• Power is the energy lost in a system

What is the equation for calculating efficiency from energy?

• Efficiency = useful energy output/total energy input

• Efficiency = total energy input/useful energy output

• Efficiency = useful energy output × total energy input

• Efficiency = total energy input - useful energy output

What is the type of energy transferred when a force moves through a distance?

• Mechanical transfer

• Electrical transfer

• Radiation transfer

• Chemical transfer

What is radiation transfer?

• The energy transferred by electromagnetic radiation.

• The energy transferred by sound waves.

• The energy transferred by mechanical movement.

• The energy transferred by chemical reactions.

Which of the following is an energy transfer pathway?

• Mechanical

• Chemical

• Nuclear

• Magnetic

What type of energy is stored in objects that move?

• Kinetic

• Chemical

• Gravitational potential

• Elastic potential

What is a gravitational potential store?

• Energy stored in objects raised up against the force of gravity.

• Energy stored in the movement of particles.

• Energy stored in an object which has been stretched or compressed.

• Energy stored in chemicals waiting to react.