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Non-contact forces - electrostatic focus

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

When one object is pulled towards another object, the objects are said to _______________ each other.

a)

repel

b)

attract

c)

push

d)

move

2.

When one object is pushed away from another object, the objects are said to _______________ each other.

a)

repel

b)

attract

c)

ignore

d)

not effect

3.

Electrons have a ______________ charge

a)

positive

b)

negative

c)

neutral

d)

non existent

4.

Protons have a ______________ charge

a)

positive

b)

negative

c)

neutral

d)

non existent

5.

Neutrons have a ______________ charge

a)

positive

b)

negative

c)

neutral

d)

non existent

6.

Which of the following metals is non-magnetic

a)

Iron

b)

Nickel

c)

Aluminium

d)

Cobalt

7.

The electrostatic force between two objects is _____________ when they are more charged and/or closer to one another

a)

weaker

b)

greater

c)

irresistable

d)

cuter

8.

Select the correct answer from top to bottom

a)

Attract, repel, attract

b)

Repel, attract, attract

c)

Attract, repel, repel

d)

Repel, attract, repel

9.

A material in which electric current will not flow freely is known as a

a)

Insulator

b)

Conductor

c)

Blocker

d)

Resistor

10.

An object or type of material that allows the flow of electric charge is known as an

a)

insulator

b)

conductor

c)

resistor

d)

amplifier

11.

Opposites....

a)

Repel

b)

are different

c)

attract

d)

are the same

12.

Any force that can occur when two objects are not touching

a)

Contact force

b)

Untouchable force

c)

Non-Contact force

d)

Touchable force

13.

Attractive or repulsive forces between particles that are caused by their electric charges

a)

Magnetic force

b)

Electrostatic force

c)

Gravity

d)

Electromagnetic force

14.

attraction or repulsion that arises between electrically charged particles because of their motion

a)

Magnetic force

b)

Electrostatic force

c)

Gravity

d)

Electromagnetic force

15.

Why does your hair stand up while gaining a charge from the Van de Graaff machine?

a)

Because its exciting

b)

The positive charge from the machine is transferred to your body, making each hair positively charged and attracted to one another

c)

The positive charge from the machine is transferred to your body, making each hair positively charged and repelled from one another

d)

The machine is taking the positive charge from your body, making each hair negatively charged and repelled from one another

16.

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons are known as

a)

ions

b)

atoms

c)

molecules

d)

electrons

17.

Why does the Van de Graaff create a spark when the opposingly charged wand is placed near it?

a)

Because its magic

b)

Air doesn't emit light when the ions recombine with electrons from the wand, you are seeing things.

c)

As the negative charge from the wand and the positive charge from the generator move through the air, it exites air molecules, causing them to give off light.

d)

because it's broken

18.

Explain why this is happening

a)

The plates are being blown away by the wind created by the Van de Graaff

b)

The plates are rubber so do not conduct electricity and are pushed away

c)

The pans all gain the opposite electrical charge from the Van de Graaff so are attracted and push away from the Van de Graaff

d)

The pans all gain the same electrical charge from the Van de Graaff so are repelled and push away from the Van de Graaff

19.

lightning is an example of which type of non-contact force?

a)

Magneitc

b)

Electrostatic

c)

Gravitational

d)

Gravity

20.

The image is an example of which type of non-contact force?

a)

Magnetic

b)

Electrostatic

c)

Gracitational

d)

Gravity

21.

After the initial mechanical incline to the first drop, roller coasters use what non-contact force to propel through the rest of the ride?

a)

Magnetic

b)

Electrostatic

c)

Gravitational

d)

Push and Pull