Unit 2 Practice Test: Electricity and Magnetism

What is the charge of a proton?

• Positive

• Negative

• Neutral

What is the charge of a neutron?

• Positive

• Negative

• Neutral

What is the charge of an electron?

• Positive

• Negative

• Neutral

Tags

NGSS.MS-PS2-3

If a neutral object gains electrons, what happens to its charge?

• Nothing

• It becomes positive

• It becomes negative

What is the main reason for Earth;s magnetic field?

• Earth revolves around the sun.

• The moon revolves around the earth

• The moon’s gravitational pull on the earth

• Earth’s iron core and rotation about its axis

What materials have the most resistance?

• Steel

• Plastic

• Copper

• Wood

What is electric current?

• Opposition to the flow of electric charge

• Rate of flow of electric charge

• Amount of work required to move electric charge

• Number of protons moving past a given point

What happens when two like charges are placed near each other?

• They move apart

• They move closer together

• They move to the left

• They remain still

Tags

NGSS.MS-PS2-3

What is electromagnetism?

• The appearance in nature of objects with electric and magnetic fields

• The use of magnets to generate electricity

• The interaction between magnetism and electricity

• The use of induction to increase or decrease voltage.

Tags

NGSS.MS-PS2-3

Which is ferromagnetic?

• Iron

• Copper

• Aluminum

• Diamond

Tags

NGSS.MS-PS2-3