Energy Transformations

What energy transformation occurs when an alarm clock rings?

• electrical to mechanical, sound

• chemical to mechanical,sound

• electrical to thermal, chemical

• mechanical to mechanical, thermal, sound

What are the energy transformations that occur when a person rides a bike to the top of a hill?

• mechanical, thermal,

• chemical, mechanical, thermal, electrical

• chemical, mechanical, thermal, electrical, radiant

• chemical, mechanical, thermal

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Is the energy in a battery, chemical or electrical (Not connected to any devices)?

• electrical

• neither

• chemical

• both

List the energy transformations of this object.

• Electrical → Mechanical/ Radiant Energy

• Electrical → Mechanical / Sound / Thermal Energy

• Mechanical → Chemical / Thermal energy

• Mechanical→ Electrical energy

Tags

NGSS.MS-PS3-5

What energy transformations does fire have?

• Thermal→ Sound Energy

• Thermal→ Radiant energy

• Chemical → Thermal energy

• Chemical→ Sound energy

Tags

NGSS.MS-PS1-2

What is the unit for kinetic and potential energy?

• Meters

• Kilograms

• Watts

• Joules

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A 4 kg ball sits at the top of a ramp 5m high. Find the PE of the ball at the bottom of the ramp.

• 200 Watts

• 50 Joules

• 50 m/s

• 200 Joules

Tags

NGSS.MS-PS3-2

What energy transformations occur when a human eats a Big Mac?

• Convection

• Thermal Energy

• Kinetic Energy

• Chemical Energy

Tags

NGSS.MS-LS1-7

How is thermal energy a product when you connect the hair straightener to an electric plug?

• When you plug in the hair straightener to electric plug it’s already composed with thermal energy

• Hair straighteners don’t have thermal energy

• When you plug in the hair straightener to the electric plug it transfers it’s electric energy to thermal energy that you can use to straighten your hair

• Hair Straighteners when plugged into an electric plug it turns into mechanical energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

After the person eating, he went on a run. What's the energy transformation that's happening?

• mechanical→ thermal energy

• Chemical→ Mechanical energy

• radiation→ chemical

• chemical→ radiation energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5