friction

How does friction affect speed?

• more friction decreases speed
• more friction increases speed
• less friction decreases speed

Tags

NGSS.3-PS2-1

The rougher the surface, the faster an object will travel over the surface.

• True
• False

Tags

NGSS.4-PS3-1

 What is the unit called that measures force?

• weight
• meter
• Newton
• kilogram

Tags

NGSS.MS-PS2-1

What does friction produce?

• light
• sound
• heat
• gravity

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Which two of these forces act on parachutes?

• Air Resistance

• Gravity

• Thrust

• Kinetic Energy

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What causes an object to fall faster?

• Smaller surface area

• Larger surface area

• If it has a parachute

• If it is softer

Tags

NGSS.MS-PS2-2

Another name for air resistance is...

• Buoyancy

• Streamline

• Gravity

• Drag

An object is falling downward through Earth's atmosphere. In which direction is the air resistance force?

• Down

• Up

• Around the object

• Through the object

Tags

NGSS.MS-PS2-2

Which objects have a STRONG force of gravity?

• Objects with GREATER mass, like elephants
• Objects with LESS mass, like mice

Tags

NGSS.MS-PS2-4

What is gravity?

• A force
• Energy
• A push
• All of them

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4