Physics Review

_________ are high energy rays used in medicine to sterilize equipment and are often used in surgery

• Alpha Radiation

• Beta Radiation

• Gamma Radiation

What energy transformation below occurs in a blow dryer?

• Electrical -> thermal

• chemical -> thermal

• Electrical -> chemical

• thermal -> electrical

Which is an example of kinetic energy?

• A soccer ball is lying on the ground.

• A person is standing in line.

• A roller coaster is sitting at the top of a hill.

• Water is flowing over a dam.

Conservation of energy means that

• energy can be created but not destroyed

• energy can be destroyed but not created

• energy can be both created and destroyed

• energy can be neither created nor destroyed

Which is the best example of an object with only potential energy?

• a boat sailing through the water

• a boulder resting on top of a cliff

• a ball being thrown across a field

• water being poured out of a pitcher

If a green golf ball is dropped from a height of 7 feet and a yellow golf ball is dropped from a height of 12 feet, which ball has greater potential energy before it is released?

• Yellow

• Green

• Both have the same amount of potential energy

• Neither will have more potential energy than the other

When a roller coaster reaches the bottom of a steep slope, it has...

• low PE and high KE

• high PE and low KE

• low PE and low KE

• high PE and high KE

Where would this tossed baseball have the least amount of kinetic energy?

• W

• X

• Y

• Z

The measure of the average kinetic energy of each atom in the substance is known as the __________

• Heat

• Temperature

• Thermal Energy

• Radiant Energy

The amount of energy needed to heat up one kg of a substance by 1°C or 1K is known as the....

• Thermal Energy

• Specific Heat Capacity

• Temperature

• Kinetic Energy