Y9 Energy Equations Consolidation

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