Forms of Energy

Which statement explains this picture?

• Atoms in the boy's hair have opposite charges.

• Atoms in the boy's hair have like charges.

• Atoms in the slide have like charges.

• Atoms in the ground have opposite charges,

Tags

NGSS.MS-PS2-3

What kind of energy is made up of gravitational potential energy and kinetic energy?

• mechanical

• chemical

• electrical

• sound

What is the BEST use of insulators with conductors?

• Rubber is an insulator that is used for tires to prevent cars from being struck by lightning.

• Glass is an insulator that is used on a television to prevent the screen from overheating.

• Plastic is an insulator that covers electrical wires to keep people safe from electric current.

• Wood is an insulator that is used for building houses to keep electric wires in the walls from shocking people.

When Dalton's toy stopped working, he replaced the batteries with new ones, but the toy still did not work. What is the MOST LIKELY reason the toy still isn't working?

• Electric current is flowing through a closed loop.

• One wire in the electric circuit is not connected to the switch.

• The toy needs plugged into an outlet.

• The switch is connected to two wires in the electric circuit.

How do lenses in prescription glasses make things look larger?

• by reflecting the light

• by absorbing the light

• by transferring the light

• by refracting the light

A burning match gives off which two forms of energy?

• chemical and electrical

• electrical and mechanical

• light and thermal

• sound and electrical

What purpose do batteries have in an electrical circuit?

• They absorb the thermal energy.

• The store light for later use.

• They convert chemical energy to electrical energy.

• They convert solar energy to usable kinetic energy.

When a television is turned on, what energy transformation occurs?

• Heat energy is changed to sound energy.

• Kinetic energy is changed to light energy.

• Electrical energy is changed to light and sound energy.

• Mechanical energy is changed to chemical energy.

Gold, silver, the human body, copper, and aluminum are examples of

• insulators

• circuits

• conductors

• power sources

The flow of charged particles is called a(n)

• electric current

• repel

• electric charge

• energy