Energy Review

The ability to cause change is

• momentum.

• energy.

• work.

• power.

What two factors determine how much kinetic energy an object has from its motion?

• the object’s speed and surface area

• the object’s speed and position

• the object’s speed and mass

• the object’s position and mass

The stored energy due to interactions between objects is

• entropy.

• thermal energy.

• kinetic energy.

• potential energy.

What two factors affect how much gravitational potential energy an object-Earth system has?

• the object’s speed and mass

• the object’s speed and surface area

• the object’s mass and height above the reference point

• Earth's size and the object's mass

The SI unit of energy is

• joule.

• watt.

• ampere.

• volt.

The energy stored by things that stretch or compress is

• Elastic potential energy.

• Gravitational potential energy.

• Elastic kinetic energy.

• Mechanical energy.

Stored energy due to chemical bonds is

• thermal potential energy.

• chemical potential energy.

• energy of activation.

• chemical kinetic energy.

Which has the most kinetic energy from its motion?

• a 1,100-kg car traveling 60 km/h

• a 300-kg motorcycle traveling 100 km/h

• a 900-kg car traveling 80 km/h

• a 2,000-kg truck traveling 50 km/h

When work is done, there is always a(n)

• transfer of energy

• increase in the mechanical advantage

• constant rate

• single movement involved

______ energy is the energy an object has because of its motion.

• Potential

• Kinetic

• Chemical

• Magnetic