Forces & Newton's Laws

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 with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

Define mass in the context of physics.

Back

Mass is a measure of the amount of matter in an object, typically measured in kilograms.

Front

What is the formula for calculating force?

Back

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

Front

Explain the concept of unbalanced forces.

Back

Unbalanced forces occur when the total force acting on an object is not zero, causing the object to accelerate in the direction of the net force.

Front

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

Back

The greater the mass of an object, the more force is required to accelerate it.

Front

What happens to an object's motion when it experiences balanced forces?

Back

When an object experiences balanced forces, it remains at rest or continues to move at a constant velocity.

Front

How does friction affect the motion of a rolling ball?

Back

Friction opposes the motion of the ball, causing it to slow down when it rolls from a smooth surface to a rough surface.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, typically measured in meters per second squared (m/s²).

Front

How do you calculate the acceleration of an object?

Back

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

Front

What is the significance of the net force acting on an object?

Back

The net force determines the object's acceleration and direction of motion according to Newton's Second Law.