Energy & Energy Transformations

Multiple Choice

The Theory of the Conservation of Energy states

• Energy can be created, just not destroyed. It changes its form from one type to another.

• Energy can never be created nor destroyed. It can only change its form from one type to another.

• The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances.

• Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.

Multiple Choice

Energy is the ability to do work.

• True

• False

Multiple Choice

The motion of an object is called _____?

• flowing energy

• kinetic energy

• potential energy

• sun energy

Multiple Choice

Which is the best example of something that has kinetic energy?

• a basketball rolling across a court

• a car parked on a steep hill

• a picture hanging on the wall

• a piece of wood before it's burned

Multiple Choice

The stored energy of an object is called ______?

• flowing energy

• kinetic energy

• potential energy

• sun energy

Multiple Choice

Energy transformations occur when...

• energy is created through conduction

• energy changes from one form to another

• two forces slide together that are touching

• a chemical reaction takes place

Multiple Choice

Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?

• chemical → light → electrical

• electrical → light → chemical

• light → electrical → chemical

• chemical → electrical → light

Multiple Choice

Which kind of energy change occurs when a candle is burning?

• Chemical to light.

• Light to electrical.

• Solar to heat.

• Chemical to electrical.

Multiple Choice

Which of these is an example of light energy being transformed into chemical energy?

• A glow stick lights up when broken.

• Water heated by the sun evaporates.

• A plant makes sugar in the sunlight.

• A battery causes a buzzer to vibrate.

Multiple Choice

When water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occurs?

• electrical → light → mechanical

• chemical → mechanical → electrical

• mechanical → chemical → light

• mechanical → electrical → light