Physical Science Midterm Review
Authored by Sorys Cepeda-Carvalho
Science
8th Grade
NGSS covered
Used 21+ times
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42 questions
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1.
CATEGORIZE QUESTION
3 mins • 1 pt
Sort the definition and examples for motor and generator.
Groups:
(a) Motors
,
(b) Generators
Windmill
Fan
An electrical current causes a coil of wire to rotate in a magnetic field.
Escalator
Hydroelectric
Converts electricity to mechanical energy (motion)
A magnet is rotated through a coil of wire to produce an electric current.
converts mechanical energy (motion) into electricity
2.
CATEGORIZE QUESTION
3 mins • 1 pt
How can the power of the electromagnet increase?
Groups:
(a) power of the electromagnet increases
,
(b) does not affect power of electromagnet
add current
add magnets
add coils
add loads
add resistors
add voltage
Tags
NGSS.MS-PS2-3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which conclusion is BEST supported by the data table?
The shorter the wire, the stronger the magnetic force.
The lower the battery voltage, the stronger the magnetic force.
The higher the number of coils, the stronger the magnetic force.
The longer the wire, the weaker the magnetic force.
Tags
NGSS.MS-PS2-3
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A balloon has a negative charge. A wall has a positive charge. What will happen when the balloon is brought near the wall?
The balloon will be attracted to the wall.
The balloon will repel from the wall
The balloon will not do anything
The balloon will spin
Tags
NGSS.MS-PS2-3
NGSS.MS-PS2-5
5.
MATCH QUESTION
1 min • 1 pt
Match the following scenarios with their outcomes.
Two non-magnetic objects
No reaction
North pole of one magnet and south pole of another magnet
Attract
North pole of one magnet and north pole of another magnet
Repel
Tags
NGSS.MS-PS2-5
NGSS.MS-PS2-4
NGSS.MS-PS2-1
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
These objects would...
Attract
Repel
No reaction
Tags
NGSS.MS-PS2-5
NGSS.MS-PS2-4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the primary function of an electromagnet?
To create light using electrical energy
To generate a magnetic field when electric current flows through it. It can be turned on and off.
To store electrical energy for later use
To convert magnetic energy into electrical energy
Tags
NGSS.MS-PS2-3
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