Unit 4: Newton's Laws

Front

What happens to the momentum of an object when its speed is doubled?

Back

The momentum doubles.

Front

What two factors does the momentum of an object depend on?

Back

Mass and velocity.

Front

What is the unit for mass in the International System of Units (SI)?

Back

Kilogram (kg).

Front

True or False: Without friction, an object in motion would never stop.

Back

True.

Front

Which material would likely have the most friction: metal, tile, sandpaper, or ice?

Back

Sandpaper.

Front

Define momentum.

Back

Momentum is the product of an object's mass and its velocity.

Front

What is the formula for calculating momentum?

Back

Momentum (p) = mass (m) × velocity (v).

Front

What is the effect of friction on motion?

Back

Friction opposes motion and can cause an object to slow down or stop.

Front

What is inertia?

Back

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

Front

How does mass affect inertia?

Back

The greater the mass of an object, the greater its inertia.