Unit 1 Energy Review

The diagram below shows a pendulum in motion.  What happens to the potential energy as the pendulum swings from point A to point E?

• Potential energy increases

• Potential energy decreases

• Potential energy increases then decreases.

• Potential energy decreases then increases.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which of the following energy transformations happens when a student uses the calories from breakfast to walk to school? 

• Chemical to light

• Chemical to mechanical

• Electrical to chemical

• Mechanical to chemical 

Tags

NGSS.MS-PS3-5

A student rolls a ball across the floor or down the hall, eventually it stops.  Did the kinetic energy disappear?

• No, due to the Law of Conservation of Energy, the kinetic energy is transformed to potential energy.

• Yes, due to the Law of Conservation of Energy, the kinetic energy is lost.

• Yes, due to the Law of Conservation of Energy, the kinetic energy is destroyed.

• 
  No, due to the Law of Conservation of Energy, the kinetic energy is transformed to stop energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

On a roller coaster, when you go up a hill, the distance between you and the Earth increases and so does the _____________ energy.

• potential

• heat

• kinetic

• electricity

Tags

NGSS.MS-PS3-2

Which of the following best explains why the sand at the beach is hotter than the water?

• Sand has a higher specific heat than water

• Sand has a lower specific heat than water.

• There is more water than sand at the beach.

• There is more sand than water at the beach.

Tags

NGSS.MS-PS3-3

The amount of energy required to raise the temperature 1ºC for every gram is called____?

• Thermal Energy

• Specific Heat

• Temperature

• Kinetic Energy

When you heat a pot on a stove, the handle gets warm. Which type of heat transfer is responsible?

• Conduction

• Convection

• Radiation

What type of energy transformation happens in hydro-electric power?

• kinetic to potential

• chemical to electrical

• sound to mechanical

• mechanical to electrical

Which of the following lists the bar graphs in correct order to match the roller coaster diagram?

• 1 – 2 – 3 – 4

• 4 – 3 – 1 - 2

• 4 – 2 – 1 – 3

• 3 – 1 – 4 – 2

Tags

NGSS.MS-PS3-1

A system that exchanges energy but not matter with its environment is known as:

• An open system

• An isolated system

• A closed system

• A semi-open system