SJC Forces & Space

What is a force?

• A push or pull
• A sound wave
• A form of matter
• A type of energy

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is friction?

• The force that accelerates the motion of an object
• The force that has no effect on the motion of an object
• The force that causes an object to float in the air
• The force that opposes the motion of an object when it is in contact with another object.

Force is measured in...

Give an example of when you would want to reduce friction

• To slow down the machine or vehicle
• To make the machine or vehicle less efficient
• To increase the speed and efficiency of a machine or vehicle
• To increase wear and tear on the machine or vehicle

Tags

NGSS.MS-ETS1-3

Give an example of when you would want to increase friction

• When walking on a dry sidewalk
• When driving on a wet or icy road surface.
• When riding a bike on a smooth road
• When skiing on fresh powder snow

Which planet is closest to the sun?

Which planet is second closest to the sun?

Which planet is third closest to the sun?

Which planet is fourth closest to the sun?

Which planet is fifth from the sun?