Laws of Motion

What is a force?

• A push or a pull

• The constant motion of an object

• The acceleration of an object

• The mass of an object

What is inertia?

• An object that is accelerating

• Gravitational force

• An objects tendency to stay at rest or in motion

• An unbalanced force

Inertia depends on __________.

• Weight

• Velocity

• Mass

• Acceleration

What formula is used to calculate force?

• Acceleration = Force x Mass

• Force = Mass x Acceleration

• Work = Force x Distance

• Mass = Force + Acceleration

Forces that are equal in size but in opposite directions are called ______________ forces.

• Strong

• Crazy

• Balanced

• Unbalanced

What can a force do?

• all of the above
• start a motion
• stop a motion
• change the direction of the motion

Friction and gravity are both examples of a force.

• True
• False

An object at rest will _______ if no outside forces are applied.

• stay at rest
• increase velocity
• decrease mass
• fall to the ground

What is Newton's First Law?

• Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
• Force = mass x acceleration
• For every action there is an equal and opposite reaction

What is Newton's Third Law?

• Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
• Force = mass x acceleration
• For every action there is an equal and opposite reaction