Semester 1 Review: Energy and Matter

Describe the energy transformation when a car's engine burns fuel.

• mechanical energy is converted into chemical energy

• chemical energy is converted into mechanical energy

• mechanical energy is converted into potential energy

• potential energy is converted into chemical energy

Answer explanation

This would be the same for your body. The chemical energy (food as fuel) is transformed into mechanical energy.

Tags

NGSS.HS-PS3-3

Taylor built an electric circuit using a battery, wire, light socket, and a bulb. What would the energy transformation for this system be when the circuit is complete and the bulb is lit?

• Electrical energy $\rightarrow$ light energy and heat energy

• Mechanical energy $\rightarrow$ light energy and sound energy

• Electrical energy $\rightarrow$ light energy and chemical energy

• Chemical energy $\rightarrow$ thermal energy and electrical energy

What is the energy transformation when an electric coffee pot heats water?

• Electrical energy is transformed into chemical energy.

• Chemical energy is transformed into thermal (heat) energy.

• Electrical energy is transformed into radiant (light) energy.

• Electrical energy is transformed into thermal (heat) energy.

Sam tossed a ball into the air. When the ball reaches the top of its arc, what type of energy does the have at its peak?

• potential energy

• kinetic energy

• it has no type of energy

• both potential and kinetic

Tags

NGSS.MS-PS3-2

At which point would the kinetic energy be the greatest?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

Which graph represent the energy at Point E on the pendulum?

• 
• 
• 
• 

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-1

Which of the following best describes a bow being drawn back and firing an arrow at a target?

• gravitational potential energy is transformed into kinetic energy

• kinetic energy is transformed into gravitational potential energy

• elastic potential energy is transformed into kinetic energy

• gravitational potential energy is transformed into elastic potential energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

What is the energy transformation of a skateboarder going down a hill?

• kinetic energy to potential energy

• potential energy to kinetic energy

• elastic potential energy to mechanical energy

• mechanical energy to potential energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

When fireworks are lit, they undergo a chemical change; however, what is the energy transformation involved in this process?

• Potential energy is converted into light, heat, and sound.

• Kinetic energy is converted into light, heat, and sound.

• Potential energy is converted into mass, light, and sound.

• Kinetic energy is converted into light, mass, and heat.

Tags

NGSS.MS-PS3-5

Which of the following situations would mechanical energy be converted into electrical energy?

• eating a hamburger

• cookies browning in the oven

• using a generator to power a engine

• the sun warming the water