5/6 Chemistry & Physics - Lesson 6

Physics is the study of _______________.

• inertia

• motion

• matter

• gravity

______________ is the study of motion.

• Dynamics
• Physics

• Mechanics

• Inertia

Two forces on earth that act on us are:

• Air resistance and inertia
• Gravity and tension

• Gravity and friction

• Friction and tension

Force is a __________ or _________ on an object.

What does F = MA mean?

• F = MA means Force equals Motion times Acceleration.
• F = MA means Mass equals Force divided by Acceleration.
• F = MA means Force equals Mass times Acceleration.
• F = MA means Acceleration equals Force divided by Mass.

Change in speed and direction of something that is moving.

• Momentum
• Force
• Acceleration
• Velocity

True or False: The smaller the object, the more force is needed to stop it's motion.

• True

• False

The Law that says force causes an object to change speed or direction is Newton's ___________ law of motion.

The law that says something at rest or in motion in a straight line prefers to stay that was unless something forces it to move or stop moving is Newton's ____________ law of motion.

Where is perpetual motion only possible?