Intro to Forces

Front

What is inertia?

Back

Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed or direction of motion.

Front

What does it mean if an object won't move?

Back

If an object won't move, it means that the net force acting on it is zero, indicating that all forces are balanced.

Front

What is the formula for force?

Back

The formula for force is F=ma, where F is force, m is mass, and a is acceleration.

Front

What does Newton's Third Law of Motion state?

Back

Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction.

Front

What is a balanced force?

Back

A balanced force occurs when two forces acting on an object are equal in size but opposite in direction, resulting in no change in motion.

Front

What is the difference between mass and weight?

Back

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

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object, which can be caused by a change in speed or direction.

Front

What is the role of friction in motion?

Back

Friction is a force that opposes the motion of an object, acting parallel to the surfaces in contact.

Front

What is gravitational force?

Back

Gravitational force is the attractive force between two masses, which depends on their masses and the distance between them.

Front

What is the difference between static and kinetic friction?

Back

Static friction acts on an object at rest and prevents it from starting to move, while kinetic friction acts on an object that is already in motion.