Forces Review

Which correctly state's Newton's 1st Law of Motion?

• An object at rest stays at rest unless forces are unbalanced

• Constant velocity means the forces are balanced

• objects with bigger masses need more force

• two of these are correct

An object that is NOT MOVING, or is at rest has ___ forces

• balanced
• unbalanced

an object that is moving at a constant velocity has _____ forces

• balanced

• unbalanced

A your notebook sits at rest on your desk _______

• it has no forces acting on it

• it has many balanced forces acting on it

• it has many unbalanced forces acting on it

An object that is accelerating has _____ forces

• balanced

• unbalanced

What needs to happen to cause a change in somethings motion if its going at a constant velocity

• Increase all the forces by 1

• Decrease all the forces by 1

• Cause an unbalanced force

• nothing

Newton's Second Law of Motion is known as___________

• inertia

• action

• force

• F=ma

Newton’s second law says that when an _____ force is applied to a _____, it causes it to_____.

• force, mass, acceleration

• unbalanced, mass, acceleration

• acceleration, force, mass

• mass, acceleration, unbalanced force

The greater the force applied to an object the _____ the acceleration

• greater

• smaller

mass is

• the amount of stuff an object is made of

• the force of gravity on an object

• how heavy something is