MATTER & PARTICLES
ELEMENTS, COMPOUNDS & MOLECULES
FORCES & MOTION
ENERGY & MEASUREMENT
SPEED & SIMPLE CALCULATIONS
100
What are the three common states of matter?
Solids, liquids and gases
100
What is the name of the substance with the chemical formula H₂O?
Water
100
What two 'P's describe a force?
A push or a pull
100
What instrument would you use to measure temperature?
Thermometer
100
Which two quantities do you need to calculate speed?
A. Mass and time
B. Distance and time
C. Distance and mass
D. Force and distance
B
200
In which state of matter are the particles generally furthest apart?
Gas
200
The diagram shows a particle of water (H2O). Is water an element or a compound?
A compound — each water molecule contains two hydrogen atoms and one oxygen atom chemically joined together.
200
What force pulls objects towards the Earth?
Gravity
200
What is the standard unit of mass?
Kilogram (kg)
200
A cyclist travels 20 metres in 4 seconds. What is their average speed?
5 m/s
300
A substance keeps the same volume but takes the shape of its container. What state of matter is it?
Liquid
300
Carbon dioxide has the formula CO₂. How many oxygen atoms are there in one molecule of carbon dioxide?
Two
300
What force acts between surfaces when they rub against each other?
Friction
300
What unit would normally be used to measure the length of a classroom?
Metre
300
A car travels at 10 m/s for 6 seconds. How far does it travel?
60 m
400
What happens to the particles in a substance when it gets colder?
They lose energy and move/vibrate more slowly.
400
Which sample represents an element?
B - Every atom in the sample is the same
400
What unit is used to measure force?
Newtons (N)
400
Energy comes in several forms. What type of energy is stored in a battery?
Chemical energy
400
A runner travels 100 m in 20 seconds. What is their average speed?
5 m/s
500
Which two states of matter are described as fluids?
Liquids and gases
500
Which two samples are pure substances?
B and C - Every particle in the sample is the same
500
What do we call the force of gravity acting on a particular mass?
Weight
500
A metal spoon is placed in hot water. After several minutes, the handle becomes warm. What process has transferred thermal energy through the spoon?
Conduction
500
A train travels 300 m in 15 seconds. Calculate its average speed.
20 m/s.