5th Science, M C2 A Review

Front

What is an unbalanced force?

Back

An unbalanced force is a force that causes an object to change its motion, such as speeding up, slowing down, or changing direction.

Front

What happens to an object when an unbalanced force acts on it?

Back

The object will accelerate in the direction of the unbalanced force.

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as electrical energy to thermal energy.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, causing objects to appear distorted.

Front

What is reflection?

Back

Reflection is the bouncing back of light when it hits a surface, such as a mirror.

Front

What is the role of a force in motion?

Back

A force is needed to change the motion of an object, whether to start moving, stop, or change direction.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter, which is the total kinetic energy of particles in an object.

Front

What is an example of a balanced force?

Back

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

Front

What is the difference between mechanical energy and thermal energy?

Back

Mechanical energy is the energy of an object due to its motion or position, while thermal energy is related to the temperature and movement of particles.

Front

What is the effect of pulling on an object?

Back

Pulling on an object applies a force that can cause it to move in the direction of the pull.