Newton's Laws and Calculations

Front

What is inertia?

Back

Inertia is the tendency of an object to resist a change in its motion. It is directly related to the mass of the object.

Front

Which object has the greatest inertia: a 500 kg object at rest, a 300 kg object at rest on the Moon, a 250 kg object moving at 25 m/s, or a 700 kg object moving at 3 m/s?

Back

A 700 kg object moving at 3 m/s has the greatest inertia.

Front

What happens to a resting object due to inertia?

Back

A resting object will remain at rest.

Front

How do you calculate force using mass and acceleration?

Back

Force (F) is calculated using the formula F = mass (m) × acceleration (a).

Front

If a 20 kg bike accelerates at 10 m/s², what is the force applied?

Back

The force applied is 200 Newtons.

Front

What action increases inertia?

Back

Changing the coin to a heavier coin increases inertia.

Front

What is the relationship between mass and inertia?

Back

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

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 at a constant velocity unless acted upon by a net external force.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) is calculated using the formula a = (final velocity - initial velocity) / time.

Front

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

Back

The unit of force is the Newton (N).