Bill Nye - Motion Video Questions

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. Objects at rest stay at rest, and objects in motion stay in motion unless acted upon by a force.

Front

True or False: Only objects that are not moving have inertia.

Back

False. All objects have inertia, whether they are moving or at rest.

Front

Which statement about inertia is correct?

Back

All of the following are correct: Objects at rest stay at rest; objects in motion stay in motion, and the force necessary to overcome an object's inertia depends on its mass.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object and remains constant regardless of location. Weight is the force of gravity acting on that mass and can change depending on the gravitational pull.

Front

True or False: Newton's Laws of Motion do not apply in outer space.

Back

False. Newton's Laws of Motion apply everywhere, including outer space.

Front

What causes an object to move?

Back

Forces cause objects to move. A force is a push or pull that can change the motion of an object.

Front

What happens to an object at rest when a force is applied?

Back

An object at rest will start to move in the direction of the applied force.

Front

What happens to an object in motion when no forces act on it?

Back

An object in motion will continue to move in a straight line at a constant speed.

Front

What is a force?

Back

A force is a push or pull that can cause an object to accelerate, change direction, or change shape.

Front

What is the relationship between mass and inertia?

Back

The greater the mass of an object, the greater its inertia. Heavier objects require more force to change their motion.