Energy and Energy Transformations

Which of the following statements best describes the energy transformation that occurs when a log burns?

• Mechanical energy changes to chemical energy.

• Chemical energy changes to heat and light energy.

• Heat and light energy changes to chemical energy.

• Mechanical energy changes to heat and light energy.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which energy transformation occurs in a rubber band powered model airplane when it is wound?

• Thermal energy stored in the rubber band is transformed into chemical energy used by the propeller.

• Kinetic energy stored in the rubber band is transformed into thermal energy used by the propeller.

• Chemical energy stored in the rubber band is transformed into potential energy used by the propeller.

• Potential energy stored in the rubber band is transformed into mechanical energy used by the propeller.

Tags

NGSS.MS-PS3-5

You have two bowling balls of equal mass. Ball A is resting near the edge of a shelf. Ball B is resting on the ground below. Which of these statements best describes the two bowling balls?

• Ball A has more kinetic energy than Ball B.

• Ball B has more kinetic energy than Ball A.

• Ball A has more potential energy than Ball B.

• Ball B has more potential energy than Ball A.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-1

A family is moving from Pennsylvania to Connecticut during the summer. As the moving van burns gasoline in its engine, it converts

• A. chemical energy into mechanical energy

• B. kinetic energy into potential energy

• C. thermal energy into electrical energy

• D. mechanical energy into kinetic energy

Which of the following statements is true according to the law of conservation of energy?

• Energy cannot be created.

• Energy cannot be destroyed.

• Energy can be transferred from one form to another.

• all of the above

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

As a heavy metal ball rolls down a hill, it goes faster and faster. Which statement is true?

• The ball's potential energy is changing to kinetic energy.

• The ball is gaining potential energy from the hill.

• The ball is rapidly losing kinetic energy as it rolls down the hill.

• The ball will continue gaining kinetic energy until it stops.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

Fission and fusion are both examples of

• electromagnetic energy

• chemical energy

• nuclear energy

• mechanical energy

Tags

NGSS.HS-PS1-8

A solar panel is used to collect energy from the Sun and change it into other forms of energy. Which form of energy is collected by the solar panels?

• wind

• sound

• magnetic

• light

A student is investigating potential and kinetic energy by stretching a spring across a table. When the student lets go, the spring recoils. At which time is potential energy in the spring being converted into kinetic energy in this system?

• when the spring is stretching

• when the spring is fully stretched

• when the spring is recoiling

• when the spring is fully recoiled

Tags

NGSS.MS-PS3-2

A skateboarder travels from location 1 to location 4 as shown below. At which location does the skateboarder have the most kinetic energy and the least potential energy?

• A. 1

• B. 2

• C. 3

• D. 4

Tags

NGSS.MS-PS3-1