UNIT 8 Forces & Newton's Laws REVIEW

What does it mean when net force = 0?

• the object is in equilibrium
• the forces acting on the object are unbalanced
• the object is accelerating
• the object is NOT in equilibrium

What is the relationship between ACCELERATION and FORCE?

• When force increases, acceleration increases too.
• When force decreases. acceleration increases.
• They don't have a relationship.
• What?

What is the relationship between ACCELERATION and MASS?

• direct relationship
• inverse relationship
• no relationship
• what?

When solving for acceleration, which equation shows the correct formula?

• a = Fm
• a = m/F
• a = F/m
• a = F + m

Which term describes the property of an object to resist a change in motion?

• force
• inertia
• momentum
• acceleration

Objects with MORE mass have ________________ inertia.

• undefined
• the same
• less
• more

Which of the following is NOT true about an object in equilibrium?

• all forces are balanced
• net force = 0
• the object is not accelerating
• the object is speeding up

Which of the following is true about an object that is NOT in equilibrium?

• the forces acting on an object are UNBALANCED
• the object is in equilibrium
• the object could be at rest
• the object could be at constant velocity

What is the mass of an object that has a net force of 200 N and an acceleration of 50 m/s/s?

• 10,000 N
• 4 N
• 10,000 kg
• 4 kg

Which is NOT true about action-reaction forces?

• they act on the same object
• they act in opposite directions
• both forces have the same strength
• both are always there when any force appears