Lesson 2: Newton's 2nd Law

Front

What is Newton's 2nd Law of Motion?

Back

Newton's 2nd Law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. This can be expressed with the formula: F = ma (Force = mass x acceleration).

Front

How does increasing mass affect acceleration?

Back

Increasing the mass of an object decreases its acceleration if the force applied remains constant.

Front

What is the relationship between mass and force required to accelerate an object?

Back

The more mass an object has, the more force it takes to accelerate it.

Front

If two objects are pushed with the same force, which will accelerate more?

Back

The object with less mass will accelerate more when pushed with the same force.

Front

What are the ways an object can accelerate?

Back

An object can accelerate by speeding up, slowing down, or changing direction. Remaining stationary is not considered acceleration.

Front

Which object requires more force to slow down: a truck or a car?

Back

A truck requires more force to slow down than a car due to its greater mass.

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = ma, where F is force, m is mass, and a is acceleration.

Front

What happens to acceleration if the force applied is doubled?

Back

If the force applied is doubled, the acceleration of the object also doubles, assuming mass remains constant.

Front

What is inertia?

Back

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

Front

How does friction affect acceleration?

Back

Friction opposes motion and can decrease the acceleration of an object when a force is applied.