Unit 3: Force, Speed, & Newton (MU2)

Front

What is mass?

Back

Mass is a measure of the amount of matter in an object, typically measured in kilograms (kg). It does not change regardless of location in the universe.

Front

What is 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 = m * g). Weight can change depending on the gravitational field.

Front

What is net force?

Back

Net force is the overall force acting on an object when all individual forces are combined. It determines the object's acceleration.

Front

What is the formula for calculating net force?

Back

Net force (F_net) = Sum of all forces acting on an object.

Front

What is the relationship between mass and weight?

Back

Weight is directly proportional to mass. As mass increases, weight increases, assuming the gravitational field remains constant.

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 a net external force.

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 = m * a).

Front

What is Newton's Third Law of Motion?

Back

For every action, there is an equal and opposite reaction.

Front

What is constant velocity?

Back

Constant velocity means an object is moving at a fixed speed in a straight line, with no acceleration.

Front

What is free fall?

Back

Free fall is the motion of an object under the influence of gravitational force only, with no other forces acting on it.