Energy, Forces and Motion

Front

What is energy?

Back

Energy is the ability to do work or cause change. It exists in various forms, such as kinetic, potential, thermal, and chemical energy.

Front

What is force?

Back

A force is a push or pull on an object that can cause it to accelerate, change direction, or change shape.

Front

What is motion?

Back

Motion is the change in position of an object over time. It can be described in terms of speed, direction, and distance.

Front

What is the relationship between force and motion?

Back

An unbalanced force acting on an object causes it to change its state of motion, either by accelerating, decelerating, or changing direction.

Front

What does it mean for an object to be at rest?

Back

An object is at rest when it is not moving and its position does not change relative to a reference point.

Front

What is constant speed?

Back

Constant speed means that an object covers equal distances in equal intervals of time, without speeding up or slowing down.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It occurs when an object speeds up, slows down, or changes direction.

Front

What is a balanced force?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion of the object.

Front

What is an unbalanced force?

Back

Unbalanced forces are not equal and can cause an object to start moving, stop moving, or change direction.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion, which depends on its mass and speed.