General Science Quiz 9B

Sort the ideas to show which type of force is being described.

Groups:

(a) Strong Force

,

(b) Gravitational Force

,

(c) Electromagnetic Force

• a relatively weaker force than others

• the force that pulls objects towards Earth when they fall

• the force of attraction and repulsion between charged objects

• believed to be the strongest natural force

• holds the nucleus of an atom together

• the force of attraction between objects that have mass

• the push and pull that causes the flow of electricity

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-4

What is it called when there is a buildup of extra electrons on an object?

​ (a)   are poor conductors of electricity, but ​ (b)   are good conductors of electricity.

• plastics
• metals

A closed path through which electric current flows is called an electric __ .

All electric circuits need...

• a power source

• a switch

• a load

• a light bulb

A complete circuit that allows electricity to flow through is called a(n) ​ (a)   .

An incomplete circuit that does not allow electricity to flow through it is called a(n) ​ (b)   .

• closed circuit
• open circuit

Magnets create gravitational fields around themselves.

• true

• false

Two south poles on a magnet would...

• attract each other

• repel one another

Tags

NGSS.MS-PS2-3

Two north poles on a magnet would...

• attract each other

• repel one another

Tags

NGSS.MS-PS2-3

A north and a south pole of two magnets would...

• attract each other

• repel one another

Tags

NGSS.MS-PS2-3