Inertia and types of force

Choose all the the following that are types of forces...

• gravity

• friction

• motion

• acceleration

The type of force that opposes motion

• gravity

• friction

• motion

• acceleration

How does friction affect speed?

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

This photo represents...

• Air resistance

• water resistance

• friction force between 2 solid bodies

Which has more mass, Earth or the Moon?

• Earth
• Moon
• The same

What is mass?

• How much MATTER makes up an object.
• How much GRAVITY is pulling an object.

The force of gravity acting on an object is the object's ______.

• mass
• matter
• weight 
• friction 

Which of the following never changes no matter where in the universe?

• weight
• force
• mass
• pounds

What best describes the mass and weight of a person as they move around the universe?

• mass and weight changes
• Mass and weight stays constant
• weight remains constant, mass changes
• Mass stays constant, weight changes

What force causes objects falling near Earth's surface to slow down?

• Gravity
• Air Resistance
• Centripetal Force
• Newtons