Energy Transformations A

A battery is placed in a flashlight, which completes a circuit, then produces light when turned to the on position.

​ ​ (a)   energy is transformed into -->​ (b)   energy and then transformed into -->​ (c)   energy.

• chemical
• electrical
• radiant
• mechanical
• gravitational
• thermal
• elastic
• sound
• nuclear

Answer explanation

Chemical energy is energy stored in the bonds of chemical compounds - like in a battery.

Electrical energy is energy made available through the flow of current through a conductor - like a circuit.

Radiant energy is energy carried by electromagnetic radiation - like light.

A rotating turbine generates electricity to power a blow-dryer.

​ ​ (a)   energy is transformed into -->​ (b)   energy and then transformed into -->​ (c)   energy.

• mechanical
• electrical
• thermal
• gravitational
• elastic
• sound
• nuclear
• chemical
• radiant

Answer explanation

Mechanical energy is energy due to motion or position - like in a rotating turbine.

Electrical energy is energy made available through the flow of current through a conductor - electricity.

Thermal energy is energy of an object due to the kinetic energy of its atoms - like a blow-dryer.

Lion on a cliff’s edge pounces onto a deer below and consumes it.

​ ​ (a)   energy is transformed into -->​ (b)   energy and then transformed into -->​ (c)   energy.

• gravitational
• mechanical
• chemical
• elastic
• sound
• nuclear
• electrical
• radiant
• thermal

Answer explanation

Gravitational energy is energy of an object due to its high or position compared to a low one - like a lion on a cliff's edge.

Mechanical energy is energy due to motion or position - like when a lion pounces.

Chemical energy is energy stored in the bonds of chemical compounds - like in a deer.

Tags

NGSS.MS-PS3-5

Electricity flows to a microwave as it reheats your food.

​ ​ (a)   energy is transformed into -->​ (b)   energy and then transformed into -->​ (c)   energy.

• electrical
• radiant
• thermal
• elastic
• sound
• nuclear
• mechanical
• gravitational
• chemical

Answer explanation

Electrical energy is energy made available through the flow of current through a conductor - electricity.

Radiant energy is energy carried by electromagnetic radiation - like microwaves.

Thermal energy is energy of an object due to the kinetic energy of its atoms - like reheated food.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A person standing on the edge of a diving board pushes down to bend the board, then bounces up.

​ ​ (a)   energy is transformed into -->​ (b)   energy and then transformed into -->​ (c)   energy.

• gravitational
• elastic
• mechanical
• sound
• nuclear
• chemical
• radiant
• electrical
• thermal

Answer explanation

Gravitational energy is energy of an object due to its high or position compared to a low one - like standing on the edge.

Elastic energy is energy stored in an object due to being compressed or stretched - like bending a diving board.

Mechanical energy is energy due to motion or position - like bouncing.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

A battery powers a phone that chimes when turned on.

​ ​ (a)   energy is transformed into -->​ (b)   energy and then transformed into -->​ (c)   energy.

• chemical
• electrical
• sound
• nuclear
• radiant
• mechanical
• gravitational
• thermal
• elastic

Answer explanation

Chemical energy is energy stored in the bonds of chemical compounds - like in a battery.

Electrical energy is energy made available through the flow of current through a conductor - like a phone.

Sound energy is energy transferred through a medium by a longitudinal wave - like a chime.

Tags

NGSS.MS-PS3-5