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8th-T2 L4: Electric & Magnetic Interaction

8th-T2 L4: Electric & Magnetic Interaction

Assessment

Presentation

Science

6th - 8th Grade

Practice Problem

Easy

NGSS
MS-ESS1-1, MS-ESS2-4, MS-ESS3-2

+21

Standards-aligned

Created by

Angeles Pedroza

Used 7+ times

FREE Resource

31 Slides • 16 Questions

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3

Draw

Circle the part of the image that shows that electrical energy has been transformed into mechanical energy.

4

Open Ended

Question image

​What makes the trolley travel?

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Open Ended

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How would you describe its motion?

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Open Ended

Question image

List two other examples in which electrical energy transforms into mechanical energy.

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8

Multiple Choice

What kind of motor does the trolley use?

1
Gasoline motor
2
Electric motor
3

Magnetic motor

9

Draw

Circle what things are different in these two models.

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Drag and Drop

A ​
is a device that measures small amount of ​
.
Drag these tiles and drop them in the correct blank above
galvanometer
current/electricity
thermometer
magnetism

17

Open Ended

​How do you think an electric motor works?

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Multiple Choice

What are the components of an electric motor?

1
Circuit board, gears, springs, and lubricant
2
Stator, rotor, commutator, brushes, and bearings
3
Battery, wires, switch, and magnets
4
Stator, rotor, commutator, brushes, and belts

21

Drag and Drop

Electric​ motors transform ​
energy into ​
energy.
Drag these tiles and drop them in the correct blank above
electrical
mechanical
chemical
light

22

Labelling

label the electric motor

Drag labels to their correct position on the image

brush

commutator

coil

current wires

magnet

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Multiple Choice

What is a generator?

1

a device the creates a magnetic field

2

a device the turns mechanical energy into electrical energy

3

a device that uses electricity

37

Drag and Drop

Question image
Examine the image. Then use the term clockwise or counterclockwise to complete each sentence correctly.



When the conductor moves upward through the magnetic field, the induced current flows ​
.



When the conductor moves downward, the induced current is ​
.
Drag these tiles and drop them in the correct blank above
counterclockwise
clockwise

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Multiple Choice

What is a transformer?

1

a device that turns energy into magnetism

2

a device that adjusts the energy by increasing or decreasing the voltage

3

a device that has mechanical energy

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Drag and Drop

An​
is a device that increases/decreases voltage using two separate ​
instead of insulated wire that is wrapped around an ​
Drag these tiles and drop them in the correct blank above
coils
iron core
electrical transformer

44

Multiple Select

What are the two types of electric transformers?

1
Up and down transformers
2
North and south transformers
3

Step-up transformer

4

step-down transformer

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Students will now complete the worksheet using the Phet Simulation that is on the last slide. Print out worksheet that is on the next slide. Also can find it on your drive in the science folder for 8th Grade Activities.

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