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 at a constant velocity unless acted upon by a net external force.

Front

Define mass.

Back

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

Front

Define weight.

Back

Weight is the force exerted by gravity on an object, calculated as the mass of the object multiplied by the acceleration due to gravity (W = mg).

Front

What is the direction of the normal force?

Back

The normal force acts perpendicular to the surface of contact.

Front

What is the relationship between mass and weight on different planets?

Back

Mass remains constant regardless of location, but weight changes depending on the gravitational pull of the planet.

Front

What is Newton's Second Law of Motion?

Back

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).

Front

What is the concept of action and reaction forces?

Back

For every action, there is an equal and opposite reaction (Newton's Third Law of Motion).

Front

What is air resistance?

Back

Air resistance is a type of frictional force that opposes the motion of an object through the air.

Front

What is friction?

Back

Friction is a force that opposes the relative motion of two surfaces in contact.

Front

What happens to the weight of an object if it is taken to the Moon?

Back

The weight of the object decreases due to the Moon's weaker gravitational pull compared to Earth.