Worksheets1.1 What is energy?(Final Revision)
Total questions: 19
Worksheet time: 10mins
Energy is measured in
Metres
Joules
Ohms
Kilograms
6000 J = ________ kJ
600
60
6
0.6
6000 J = ________ kcal
1.4
1428
25200
25.2
25 kcal = ________ kJ
0.17
0.48
105
0.025
10 kcal = ________ J
42
2.3
0.42
42000
800,000 kJ = _________ J
8
80
8000
800
800 kJ = _________ kcal
3360
190.4
0.8
800
Energy is defined as the ability to do
events
friction
explosions
work
Which of the following is not a form of energy?
Heat
Light
Solar
Sun
Choose the lowest amount of energy from these values.
2000 J
2000 kJ
0.2 kJ
20 J
20 kJ
Choose the highest amount of energy from these values.
2000 J
2000 kJ
0.2 kJ
20 J
20 kJ
Food is the only energy store.
True
False
The energy in the food someone eats shouldn't equal the energy they need for the activities that they do.
True
False
The energy used to generate electricity may have been stored in a fuel such as coal or oil
True
False
Energy is measured in joules or kilojoules, its abbreviated as..................... and......................respectively.
j / kj
J / KJ
j / Kj
J / kJ
Energy is measured sometimes in calories or kilocalories, its abbreviated as..................... and......................respectively.
Cal / kcal
cal / Kcal
Cal / KCal
cal/kcal
About ................................... of the energy that you need every day is for processes in your body like breathing.
25%
50%
75%
100%
For how much time would you need to wash and dress to use up the energy in 100 g of chocolate?
(chocolate 1500kJ)
(washing, dressing 15kJ/min)
1.4 hours
100 hours
10 hours
1 hour 40 min
Calculate the number of minutes that you would need to cycle to use up the energy in 200 grams of cooked chicken.
64 hours
64 min
6 hours 4 min
