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WorksheetsY9 Energy Equations Consolidation
Total questions: 20
Worksheet time: 12mins
What unit is used for the calculations of energy?
Newtons (N)
Joules (J)
Metres per second (m/s)
Kilograms (kg)
Which one is the correct equation for Work Done?
Force x Speed
Force x Height
Mass x Gravity x Height (mgh)
Force x Distance
If Work Done (J) is calculated using Force (N) x Distance (m). What is the work done to move a 6N book, 3m up?
6J
2J
18J
10J
What is the MASS of a 10N WEIGHT on Earth?
100g
300g
1kg
10g
Weight (N) = mass (kg) x Gravitational pull (10m/s2)
What is the WEIGHT of a 2kg bike, assuming a pull of 10m/s2.
20kg
20N
150N
11.5N
Energy _________ = Work Done
Changed
Stored
Transferred
A car moves with a force of 10N over a distance of 10m. Calculate the work done.
10J
100J
50J
20J
What is the unit for energy?
Newtons
Metres
Joules (J)
Gravitational, Kinetic and Elastic are all examples of stores of?
Power
Energy
Friction
Fill in the gaps:
Energy can't be _________ or _____________, only ____________
Transferred, Destroyed, Created
Joules, Newtons, Potatoes
Created, Destroyed, Transferred
Destroyed, Created, Transferred
GPE (J) = Weight (N) x change in height (m):
A weight of 500N is placed up 1.5m higher than the floor. What is the GPE (J)?
500J
750N
750J
600J
What does mgh stand for?
mass (kg) x gravity x height (m)
mass x gravity x herman
metres x gravity x height
mass x gravity x helium
a 2kg object is raised 2m, what is the change in GPE? Hint: m x g x h. (g = 10)
40J
40N
40kg
40m
mass = 450kg, gravity = 10N/kg, height = 12m. Calculate GPE. (mgh)
472J
54,000N
54,000J
5,400J
Where is GPE the lowest in a bungee jump?
At the middle pont
At the lowest point
At the highest point
None of the above
What is the useful energy output from a TV?
Sound and LIght
Chemical and Nuclear
Thermal
Gravitational and Thermal
Which energy store decreases as an object falls?
Gravitational
Kinetic
Checmial
Magnetic
In a pendulum swing, where is kinetic energy the lowest?
At the bottom point
Quarter way through the swing
Before being let go
Which energy stores is friction generally transferred to? (2)
Thermal
Gravitational
Sound
Heat
Ways of reducing friction?
Lubrication
Streamlined
Moving slowly
All of the above
