Force and Motion - Flashcard 1

Front

What is a force?

Back

A force is a push or pull that can cause an object to move, stop, or change direction.

Front

What units are used to measure force?

Back

Force is measured in Newtons.

Front

What is a contact force?

Back

A contact force is a force that causes objects to move by touching them.

Front

What is a non-contact force?

Back

A non-contact force is a force that acts on an object without physical contact, such as gravity or magnetism.

Front

What is gravitational attraction?

Back

Gravitational attraction is the force that pulls two objects toward each other, depending on their masses and the distance between them.

Front

Why do we experience stronger gravitational attraction with Earth than with the Sun?

Back

We experience stronger gravitational attraction with Earth because we are closer to its center.

Front

What is the relationship between mass and gravitational force?

Back

The greater the mass of an object, the stronger its gravitational pull.

Front

What is the difference between mass and weight?

Back

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

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

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.