Semester 2 Review

Semester 2 Review

9th Grade

•

22 Qs

quiz-placeholder

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Semester 2 Review

Semester 2 Review

Assessment

Quiz

•

Physics, Chemistry

•

9th Grade

•

Medium

Created by

Sai Lee

Used 20+ times

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22 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

According to Newton's Universal Law of Gravitation , why does force increases a lot when distance decreases a small amount?

Force is inversely related to the distance to the power of 2. 

Force and distance have direct relationship.

When distance increases, the force will be affect less. 

Because for is only related to the mass when distance is big. 

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the electrostatic force different from the force of gravity?

The force of gravity is always stronger than electrostatic force.

The electrostatic force is always stronger than the force of gravity.

The force of gravity only pulls while the electrostatic force can both push and pull.

The electrostatic force is not affected by gravity.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

How do you make your electromagnet stronger? Check all that applies.

Wrap more coils around the nail.

Shake the battery faster.

Use a longer nail

Wrap the coils around the battery.

4.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

Media Image

How do you make the lightbulb light up brighter on the shake electricity generator? Check all that applies.

Shake the generator faster.

Add more coils around the tube.

Add more batteries

Add stronger magnet

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When electricity is generated, what is moving through the coil?

Electrons

Protons

Neutrons

Nucleus

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do magnets generate electricity?

Electricity flows in magnets.

Movements of magnets induce electrons in the coils to move to generate electricity.

The kinetic energy in magnets are transferred to the coils to generate electricity.

The potential energy in the magnets is transformed into heat, and heat generates electricity.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

What is the upside of levitating transportation?

You get to use less fossil fuel because electricity does not use fossil fuels.

You can run the transportation by using permanent magnets.

Less energy is wasted due to reduced friction.

You do not need to walk to reach your destination.

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