Force and Motion

Front

What happens to passengers in a car that suddenly stops while traveling at high speed?

Back

Passengers will continue to move in a straight line and will slide forward in the car due to inertia.

Front

What effect does friction have on a moving object?

Back

Friction causes the moving object to slow down and eventually stop.

Front

If a man and a ball travel 90 m in 9 seconds, what is their average speed?

Back

10 m/s

Front

What do you call the force of gravity acting on an object sitting on the Earth?

Back

Weight

Front

If a lizard can run 8 m across the water in 4 seconds, how fast is he traveling?

Back

2 m/s

Front

What is the definition of force?

Back

A push or pull on an object that can cause it to accelerate.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is inertia?

Back

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