Forces of Nature

Two bar magnets are held close together. They are released and allowed to move freely. The bar magnets quickly come together. Which best explains why this happens?

• The poles facing one another are both south poles

• The poles facing one another are both north poles

• The poles facing one another are opposite poles

• One magnet was bigger than the other

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Like poles will

• Attract

• Repel

• Neither

How would the poles of the magnet change if it were divided into four equal parts?

• A

• B

• C

• D

If Herman were to stand on each planet, which list correctly orders the planets from most gravitational force to least gravitational force?

• Earth, Mars, Venus

• Venus, Mars, Earth

• Earth, Venus, Mars

• Venus, Earth, Mars

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Which of the following might make the spoons repel each other?

• Neither A nor B is electrically charged.

• Both A and B are negatively charged.

• A is positively charged, and B is negatively charged

• A is negatively charged, and B is not electrically charged.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

As distance between two objects DECREASES, the gravitational force between them

• Decreases

• Stays the same

• Ceases to exist

• Increases

Tags

NGSS.MS-PS2-4

The area of magnetic force around a magnet is known as its _____________.

• magnetic field

• magnetic declination

• magnetic fan lines

• magnetic tan lines

Tags

NGSS.MS-PS2-3

These magnets would....

• Repel

• Attract

Tags

NGSS.MS-PS2-3

Which of the following is a fundamental force of nature?

• Electromagnetic force

• Frictional force

• Tension force

• Elastic force

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-4

What is the force that causes objects to fall towards the Earth?

• Magnetic force

• Gravitational force

• Nuclear force

• Frictional force

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5