Forces Flashcard

Front

What is kinematics?

Back

Kinematics is the study of motion.

Front

Do two bodies have to be in physical contact to exert a force upon one another?

Back

No, the gravitational force is a field force and does not require physical contact to exert a force.

Front

Which of the following is a unit for acceleration?

Back

m/s²

Front

What kind of physical quantity is force?

Back

Force is a vector quantity.

Front

The unit of force is

Back

Newtons

Front

What is the formula for calculating force?

Back

Force = mass × acceleration (F = ma)

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.

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 unless acted upon by a net external force.

Front

What is the formula for acceleration?

Back

Acceleration = (final velocity - initial velocity) / time.

Front

What is a contact force?

Back

A contact force is a force that acts at the point of contact between two objects.