8th Grade Science Review

Any push or pull on an object.

• force
• velocity 
• inertia
• momentum

The force that opposes motion between two surfaces in contact with each other.

• inertia
• friction
• momentum
• gravity

When all the forces on an object are equal and opposite, & the net force is zero, that's...

• balanced forces
• unbalanced forces
• terminal velocity
• reaction forces

The combination of all the forces acting on an object is the...

• net force
• action force
• reaction force
• balance force

Gravity is increased with...

• greater mass & shorter distance
• greater mass & farther distance
• lower mass & shorter distance
• lower mass & farther distance

Mass x acceleration = ?

• force
• inertia
• momentum
• velocity

What is the net force

• 10 N
• 0 N
• 25 N
• 1 N

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

What is the net force?

• 400 N Up
• 400 N Down
• - 400 N Down
• 800 N Down

Which way is the force  moving?

• it's not , it is balanced or moving at a constant
• to the right
• to the bottom
• up