Force and Motion

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. It can be expressed with the formula F = ma.

Front

What does the formula F = ma represent?

Back

The formula F = ma represents Newton's 2nd Law of Motion, where F is the force applied to an object, m is the mass of the object, and a is the acceleration produced.

Front

If a net force of 10N is applied to a 2kg object, what is the acceleration?

Back

Using F = ma, acceleration a = F/m = 10N/2kg = 5 m/s².

Front

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

Back

The unit of force in the SI system is the Newton (N).

Front

What is friction?

Back

Friction is a force that opposes the motion of an object when it is in contact with another surface.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is an example of a non-contact force?

Back

Magnetism is an example of a non-contact force, as it can attract or repel objects without direct contact.

Front

What is mass?

Back

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

Front

What is acceleration?

Back

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

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.