energy
physics

chemistry
100

What is the electron configuration of Carbon?

2,4

100

What is gravity?

The force that pulls objects toward the centre of Earth.

100

What is an atom?

The smallest unit of matter that still retains the properties of an element.

200

What is kinetic energy?

The energy of motion.

200

What is a Newton?

The unit used to measure force.

200

What is the nucleus?

The centre of an atom containing protons and neutrons.

300

What is the Law of Conservation of Energy?

This law states that energy cannot be created or destroyed.

300

What is a lever?

This simple machine consists of a rigid bar that pivots on a fulcrum.

300

What is an electron?

This subatomic particle has a negative charge.

400

What is the Sun?

The main source of Earth’s energy.

400

What is a vacuum?

The speed of light is fastest in this medium.

400

What is an element?

A pure substance made of only one type of atom.

500

What is electrical energy?

Energy we use to power appliances in our homes.

500

What is a force?

The push or pull that can change an object’s motion

500

What is the periodic table?

Elements are arranged on this chart.