States of Matter
What are the three main states of matter?
Solid, Liquid, Gas
What is the amount of space an object takes up?
a) Mass
b) Density
c) Volume
d) Surface area
c) Volume
Which type of energy is produced by moving objects?
a) Chemical energy
b) Nuclear energy
c) Kinetic energy
d) Electrical energy
c) Kinetic energy
Which of these is a renewable energy source?
a) Coal
b) Oil
c) Solar power
d) Gas
c) Solar power
What happens when objects with the same electric charge are close to each other?
a) They attract
b) They repel
c) They create energy
d) They combine
b) They repel
Which state of matter has a definite shape and volume?
a) Liquid
b) Gas
c) Solid
d) Plasma
c) Solid
Which of these is a specific property of matter?
a) Mass
b) Length
c) Hardness
d) Temperature
c) Hardness
What form of energy does the sun provide for photosynthesis?
a) Electrical energy
b) Light energy
c) Kinetic energy
d) Nuclear energy
b) Light energy
What is a disadvantage of non-renewable energy sources?
a) They pollute the environment
b) They are expensive
c) They never run out
d) They generate less energy
a) They pollute the environment
What is electric current?
a) The flow of electric charge through a material
b) A type of light energy
c) A kind of solid material
d) A new type of energy
a) The flow of electric charge through a material
Which state of matter takes the shape of its container but has a fixed volume?
a) Solid
b) Liquid
c) Gas
d) Plasma
b) Liquid
What property determines if an object will float or sink in water?
a) Elasticity
b) Buoyancy
c) Transparency
d) Brittleness
b) Buoyancy
What type of energy is stored in food and batteries?
a) Light energy
b) Chemical energy
c) Kinetic energy
d) Thermal energy
b) Chemical energy
Which energy source is created by burning plant and animal waste?
a) Biomass
b) Coal
c) Gasoline
d) Nuclear
a) Biomass
What type of energy transformation happens in a photovoltaic panel?
a) Electrical energy to light energy
b) Light energy to electrical energy
c) Kinetic energy to nuclear energy
d) Chemical energy to nuclear energy
b) Light energy to electrical energy
When a liquid changes into a gas, the process is called:
a) Freezing
b) Condensation
c) Evaporation
d) Melting
c) Evaporation
What does "conductivity" mean?
a) How easily an object stretches
b) How much space it takes up
c) How well it allows heat or electricity to pass through
d) How much it weighs
c) How well it allows heat or electricity to pass through
Electrical energy is transformed into thermal energy in:
a) A solar panel
b) A wind turbine
c) An oven
d) A battery
c) An oven
Why are renewable energy sources better for the environment?
a) They never pollute the air
b) They don’t run out and cause less pollution
c) They always generate a lot of energy
d) They are easy to transport
b) They don’t run out and cause less pollution
What happens when two objects with different charges touch?
a) The electric charge moves between them
b) The charges disappear
c) They both become positive
d) They repel each other
a) The electric charge moves between them
What happens to molecules in a solid when they are heated?
a) They move faster and spread apart
b) They stop moving
c) They disappear
d) They become smaller
a) They move faster and spread apart
Which of the following describes an object’s ability to return to its original shape after being stretched?
a) Hardness
b) Elasticity
c) Brittleness
d) Transparency
b) Elasticity
What type of energy is used in nuclear power plants?
a) Light energy
b) Kinetic energy
c) Nuclear energy
d) Thermal energy
c) Nuclear energy
Which of the following is an example of a non-renewable energy source?
a) Wind
b) Solar
c) Coal
d) Hydropower
c) Coal
Which material is a good conductor of electricity?
a) Rubber
b) Plastic
c) Copper
d) Wood
c) Copper