Electromagnetic Force: The Discovery of Friction

Select the correct vocabulary word based on the definition: a force acting between surfaces in contact. It acts to resist motion.

• friction

• gravity

• laws of motion

• acceleration

Select the correct vocabulary word based on the definition: the natural attraction between masses. (On earth, all objects are pulled towards the center of Earth)

• friction

• gravity

• laws of motion

• acceleration

Tags

NGSS.HS-PS2-4

Select the correct vocabulary word based on the definition: a change to an objects speed

• friction

• gravity

• laws of motion

• acceleration

Tags

NGSS.HS-PS2-1

Select the correct vocabulary word based on the definition: created by sir Isaac Newton, these describe the movement of objects with respect to applied forces

• friction

• gravity

• laws of motion

• acceleration

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-3

What scientists contributed to our understanding of forces, specifically friction today?

• Aristotle

• Galileo

• Newton

• Einstein

Who's thoughts were these?

Natural motions (like falling) seek a natural condition of rest. When a force stops motion stops

• Aristotle

• Galileo

• Newton

• Einstein

Who thought this first?

Moving objects naturally stay in motion unless acted on by another force

• Aristotle

• Galileo

• Newton

• Einstein

Who thought this first?

Gravity is an attraction between two masses

• Aristotle

• Galileo

• Newton

• Einstein

Tags

NGSS.HS-PS2-4

What force causes motion to stop?

• friction

• gravity

• the ground

• normal force

What surface has the LEAST amount of friction?

• smooth ice

• tall grass

• concrete