Forces and Motion Review

Front

What is the definition of force in physics?

Back

A force is a push or pull acting upon an object.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is gravity?

Back

Gravity is the force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

How does friction affect motion?

Back

Friction opposes the motion of an object, slowing it down or preventing it from moving.

Front

What is inertia?

Back

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

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 the role of a net force in motion?

Back

The net force determines the acceleration of an object according to Newton's second law (F=ma).

Front

What is the principle of action and reaction?

Back

For every action, there is an equal and opposite reaction (Newton's third law of motion).

Front

What is the effect of a balanced force on an object?

Back

A balanced force does not change the motion of an object; it remains at rest or continues to move at a constant speed.

Front

What is the effect of an unbalanced force on an object?

Back

An unbalanced force causes an object to accelerate, changing its velocity.