Changes in Force and Motion Review

Front

What is the formula for speed?

Back

Speed = Distance ÷ Time

Front

If an airplane flies 180 miles in 6 minutes, what is its speed in miles per minute?

Back

30 m/min

Front

What causes a change in motion?

Back

A push, a pull, or a force.

Front

What does Newton's First Law state?

Back

An object at rest will stay at rest and an object in motion will stay in motion unless acted upon by an outside force.

Front

What are the units for force?

Back

Newtons

Front

What would a force diagram look like for a race car moving to the right at 200 mph?

Back

The arrow pointing right will be larger.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the relationship between mass and acceleration according to Newton's Second Law?

Back

Force = Mass x Acceleration.

Front

What is a balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What is an unbalanced force?

Back

Unbalanced forces cause a change in motion because they are not equal and opposite.