Energy Transfer and Loss

Energy Transfer and Loss

8th Grade

20 Qs

quiz-placeholder

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Energy Transfer and Loss

Energy Transfer and Loss

Assessment

Quiz

Science

8th Grade

Medium

NGSS
MS-PS3-5, MS-PS3-3, MS-ETS1-2

+9

Standards-aligned

Created by

Allison Mullen

Used 3+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

The law of conservation of energy states that energy cannot be created or destroyed only transferred. Based on the diagram, energy is transferred from coal (6000 Units) to the turbine (4500 units) and then onto the generator (4005 Units) ; then to the power polls (3950 Units). How much energy is “lost” from coal to turbine ?

4,500 units

1,450 units

150 units

1,500 units

Tags

NGSS.MS-PS3-5

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Jack was practicing with his pinewood derby car. Pinewood derby cars are placed at the top of a large hill, on a track and released. The car then rolls down the hill, the fastest one wins the race. He really wanted to win this year. He wanted to increase the energy transfer from gravity to his car. He felt that the time it took to travel to the bottom was too slow. What way can he increase the transfer?

He can decrease the weight of the car.

He can make the front end more blocky.

He can increase the weight of the car as long as it meets the requirements.

He can add more wheels.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If energy is lost to the environment when transferring energy, which choice below would NOT help to increase efficiency?

Increase the use of nuclear power or other alternative power sources

Increase the insulation in the existing structures

Increase the use of energy efficient light bulbs and appliances

Increase the power entering the system

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

There is some energy “loss” at the light bulb. The light bulb is an incandescent bulb. Incandescent bulbs work by having gas in a chamber and then heating a filament, or piece of wire. The hot filament turns red, gets hot, and reacts with the gas in the bulb to create light. What is the best way to decrease the energy “loss” in the light bulb?

Use a different type of bulb, like a LED.

Use a light bulb that uses less voltage.

Use a light bulb that emits less light.

Use a colored light bulb.

Tags

NGSS.MS-ETS1-2

NGSS.MS-PS3-3

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

When a car travels, the motor transfers chemical energy into mechanical energy and then rotates the wheels, which make contact and exchange energy by friction with the road. This contact from the wheels is great during dry weather. During rain and snow, the transfer from the wheels by friction to the road is not as good. What is one solution to this problem?

Don’t drive in the rain or snow.

Have the tire completely smooth, increasing the area of contact, thus increasing the friction.

Put deep grooves in the tires so the water and snow will go into the grooves allowing the rest of the tire to make better contact with the road.

Change the height of the car by adjusting the shock absorbers.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Heat loss to the environment occurs when matter is hotter than its surroundings. Numerous solutions have been created to solve this problem. Below is an example of one possible solution. Double walled cups are a solution to the problem because:

They act as insulators and retain the heat of the matter inside.

They act as conductors and move the heat through the system.

They help increase heat transfer to the surrounding environment.

They help reduce heat loss due to radiation to the surrounding environment.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

The Bonneville Salt Flats in Nevada are known as the place to go to set land speed records, in fact they have races there every year in September. The reasons that the salt flats are such a great place to set land speed records is due to the dry, hard packed and salty land. Even though the terrain remains the same, each year teams must modify their vehicles to set new records. One solution that teams can use to increase energy transfer and increase their speed is:

Use larger tires on the vehicle to increase contact with the salt flats.

Build more efficient engines to burn fuel cleaner to provide more power.

Add mass to their vehicle to increase the force and acceleration.

Create a flat front vehicle to provide more down force and friction.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS3-5

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