Energy and work are measured in

How many joules are in 23 kJ

How many kilojoules are in 2000 J?

How many kilojoules can we find in 10 kcal?

How many kcal can we find in 8.4 kJ?

Why is it important for young children to take in more energy than they use for their activities each day?

For how many minutes would you need to cycle to use up the energy in 100 g of rice?

(rice 500kJ)

(cycling consumes 25kJ/min)

All activities have an energy cost.

One gram of wood stores a similar amount of energy to 1 g of chocolate.

About three-quarters of the energy that you need every day is for processes in your body like ................................

If we use an electric kettle, then the energy needed to boil the water is transferred by electricity.

Energy is measured in ....................... or ........................

Adults should take in only as much energy as they need for the activities that they do.

If an adult take in less energy than they need, their body stores it as fat for future use

Food is the only energy store.

If we use an electric kettle, then the energy needed to boil the water is transferred by .................................

The energy used to generate electricity may have been stored in a fuel such as .............................. or ...........................

People walking in the ........................................ need even more energy than athletes.

The energy stored in packaged food is usually shown on the .................................

Which food store the most amounts of energy in a 100 g of each?.

All activities have an energy cost depending on what activity you do.

The more active you are, the ................................energy you need.

Calculate the number of minutes that you would need to cycle to use up the energy in 100 g of rice.

Your body needs ........................ in half an hour sleep.

Your body needs ........................ in half an hour sleep.