Physical Science Pressure, Torque and Electricity

Physical Science Pressure, Torque and Electricity

8th Grade

41 Qs

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Physical Science Pressure, Torque and Electricity

Physical Science Pressure, Torque and Electricity

Assessment

Quiz

Science

8th Grade

Practice Problem

Easy

Created by

Mary Jane Isiderio

Used 21+ times

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41 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the main purpose of a Van de Graaff generator?

To generate mechanical energy

To create static electricity

To produce thermal energy

To convert solar power

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What happens to a person's hair when they touch the dome of an operating Van de Graaff generator?

The hair becomes wet

Nothing happens to the hair

The hair stands straight up

The hair falls flat

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which type of electrical charge builds up on the dome of a Van de Graaff generator?

Neutral charge

Positive charge

Alternating charge

Negative charge

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What safety precaution should be taken when using a Van de Graaff generator?

it should be earthed to prevent accidental discharge

Stand in water

Touch it constantly

use devices while touching it

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What happens when you rub a plastic rod with wool?

The plastic rod gains protons

The plastic rod gains electrons and becomes negatively charged

The plastic rod loses all its charge

The plastic rod becomes positively charged

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When a glass rod is rubbed with silk, what happens to it?

It remains neutral

It becomes negatively charged

It becomes positively charged

It loses all electrical properties

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following defines pressure?

force divide to area

force multiply by area

force added to area

force subtracted to area

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