IQWST PS2 Lessons 4-9 Assessment Review

Front

What is an endothermic process?

Back

An endothermic process is a reaction or change that absorbs energy from its surroundings, usually in the form of heat. Example: Ice melting.

Front

What happens to energy during an endothermic process?

Back

Energy is absorbed from the surroundings, causing a decrease in temperature of the surroundings.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion. It depends on the mass and speed of the object.

Front

What is potential energy?

Back

Potential energy is the stored energy of an object due to its position or state. Example: A car at the top of a hill has potential energy.

Front

What is the principle of energy transformation?

Back

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

Front

What type of energy transformation occurs when a metal sheet is hammered?

Back

Kinetic energy is transformed into heat energy due to the motion of the hammer.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential and kinetic energy in an object that is used to do work.

Front

How does a fan work in terms of energy transformation?

Back

A fan converts electrical energy into mechanical energy to rotate the blades.

Front

What is the relationship between potential energy and kinetic energy in a moving car?

Back

The total energy of the car is the sum of its potential energy and kinetic energy, which can change as it moves.

Front

What is the energy transformation in a corded drill?

Back

The drill transforms electrical energy into mechanical energy to rotate the drill bit.