Contact Forces Assessment 1

A contact force is from

• an interaction between at least two objects that are physically touching

• an interaction between at least two objects that are far apart

• when two objects are separated

• always a pull

A baseball player bats a ball with a force of 1,000 N. The ball exerts a force against the bat of...

• Less than 1, 000 N

• 1,000 N

• More than 1,000 N

Tags

NGSS.MS-PS2-1

Forces always come in pairs.

• True

• False

Tags

NGSS.MS-PS2-1

A person is attracted towards the center of Earth by a 440N gravitational force. The force with which Earth is attracted toward the person is

• More than 440N

• Less than 440N.

• The same, 440N.

Tags

NGSS.HS-PS2-4

What two factors affect an object's kinetic energy?

• area and volume

• mass and weight

• weight and height

• mass and speed

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Increasing an object's mass will increase its kinetic energy.

• true

• false

Tags

NGSS.MS-PS3-1

Increasing an object's speed will increase its kinetic energy.

• false

• true

Tags

NGSS.MS-PS3-1

If all objects are moving at the exact same speed, which would have the greatest kinetic energy?

• tennis ball

• football

• notebook

• box of 20 textbooks

Tags

NGSS.MS-PS3-1

Increasing an object's kinetic energy will increase its peak forces when the object collides with another.

• true

• false

Tags

NGSS.MS-PS2-1

NGSS.MS-PS3-1

NGSS.MS-PS3-5

In science, when one object runs into another we call it a _____________.

• crash
• hit
• strike
• collision

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2