Year 8 Energy Revision Quiz

Batteries store energy as _________ energy.

• motion
• solar
• chemical
• electrical

Which diagram models the position of a soccer ball when it has the greatest amount of gravitational potential energy?

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What forms of energy are involved in hammering a nail into wood? Select all that apply

• Sound

• Kinetic

• Electrical

• Nuclear

A nuclear power plant captures the energy created by the fission of the nuclei of uranium atoms and uses the generated energy to boil water. The boiled water creates steam that spins a series of turbines as it rises. As each turbine spins, it generates power that is sent into the power grid. Choose the correct sequence to fill in the blanks below. The uranium atoms contain __________ energy. The heat from their fission increases the __________ energy of the water. The spinning of the turbines is __________ energy that then generates __________ energy used in people’s homes.

• nuclear, thermal, kinetic, electrical

• nuclear, kinetic, thermal, electrical

• nuclear, electrical, thermal, kinetic

• nuclear, electrical, kinetic, thermal

Which of these has kinetic energy?

• a book sitting on a shelf

• hat and gloves on a table

• cars parked in a parking lot

• a child kicking a soccer ball

Which of these has elastic potential energy?

• a vase sitting on a shelf

• a stretched rubber band

• a child moving down a slide

• sugars stored in the molecules of food

Which of these best illustrates chemical potential energy?

• a dog playing fetch

• gasoline in a gas tank

• water moving down a hill

• a skydiver about to jump out of a plane

What energy transformation takes place when a hair dryer is used?

• Energy from the sun is transformed to chemical energy.

• Sound energy is transformed to thermal energy and electrical energy.

• Electrical energy is transformed to mechanical, sound and thermal energy

• Electrical energy is transformed to thermal energy and sound energy.

A scientist performed an experiment during which she measured the energy transferred in each step of her experiment. The total quantity of energy transferred in all of the steps was less than the amount she measured at the beginning. What is the most likely explanation for this result?

• Energy was destroyed during certain steps in the experiment.

• The steps in the experiment required more energy than was available.

• The experiments created energy that was then used up at a faster rate.

• Some energy was transformed into unwanted heat or sound that was not detected.

What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?

• mechanical energy to chemical energy

• thermal energy to mechanical energy

• chemical energy to mechanical energy

• mechanical energy to thermal energy