Energy Transformations Grade

How does energy change?

• The cart has more kinetic energy at the top than when it is going down the hill.

• The cart has potential energy at the top while kinetic energy increases going down.

• The cart has potential energy that is lost going down the hill.

• The cart has kinetic energy at the top of the hill and no potential energy.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which position has the most kinetic energy?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Vibrations produce _______ energy.

• chemical

• sound

• potential

• light

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Electrical Energy is transferred to _____ Energy.

• Thermal
• Solar
• Electrical
• None

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Solar Energy is transferred to _____ Energy.

• Mechanical
• Solar
• Sound
• Electrical

The Theory of the Conservation of Energy states -

• Energy can be created, just not destroyed. It changes its form from one type to another.
• Energy can never be created nor destroyed. It can only change its form from one type to another.
• The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances.
• Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A lamp that plugs into a wall socket draws energy which flows through a thin wire in the bulb causing it to glow. What energy transformations are taking place?

• chemical → light → electrical
• mechanical → sound → light
• thermal → solar → electrical
• electrical → thermal → light

When water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occurs?

• electrical → light → mechanical
• chemical → mechanical → electrical
• mechanical → chemical → light
• mechanical → electrical → light

Some students observing a classroom device being used, noticed the below energy transformations. 
Electrical → Mechanical → Sound
Which device were the students most likely observing?

• A triple beam balance measuring an object’s mass.
• A pencil sharpener plugged into a wall outlet.
• A projector displaying a diagram on the screen.
• A working flashlight used to light up a dark corner.

Chemical energy in the car is transferred to _____ energy in the car.

• Thermal

• Solar

• Mechanical

• Chemical

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5