How do we use energy?
What does a sailboat need to move?
Wind energy.
Renewable energy sources are great because they don’t run out. True or false.
True
What happens when we convert one form of energy into another?
The transformation of energy.
What needs energy to carry out all their functions?
Cells.
Batteries show us which property of energy? Stored or transported.
Stored.
Chemical energy.
Apart from coal, what other fossil fuels do you know? Name two.
Natural gas, propane.
What is the difference between a form of energy and a source of energy?
Form of energy comes from many different sources, source of energy refers to the source only.
Can living things carry out all their vital functions without energy?
No, they cannot.
We can obtain energy from places where water flows - provide one example of where water flows.
Waterfalls or the oceans tides.
Energy is the ability of bodies to _______ changes around them. What is the missing word?
Produce
Non-renewable energy sources. These are limited natural sources so they can be depleted.
What energy sources are found in Thermal (it is found or comes from the form of heat).
Solar or Geothermal.
At our current rate of consumption, which fossil fuel will run out first?
Oil.
Drying your clothes outside uses which form or energy?
Thermal energy (sunlight).
Name 4 forms of energy.
Mechanical, light, wind, chemical, heat, electrical, nuclear.
Wood waste, agricultural waste and organic waste are all examples of what?
Biomass.
Define harness.
To control something to use its power.
Name 3 types of fossil fuels.
Oil, gas, coal.
Each energy source can produce different forms of energy. In addition, these forms are constantly transformed into others because…
energy is neither created nor destroyed, it is only transformed.
What are two types of energy sources we use now to power our homes or our world?
Nuclear, solar or electrical.
Define biomass in one sentence.
Biomass refers to organic material from plants and animals used as a renewable energy source, such as wood, crops, or waste, which can be burned to produce heat or electricity.
Wind turbines use the kinetic energy of the wind to produce what?
Electrical energy.
Why is renewable energy so important for our lives?
Renewable energy helps keep our planet clean and healthy by reducing pollution.
What is electrical charges?
The amount of electricity a body contains.