Year 10 Energy Equations mini test

Front

Which is the correct equation to calculate efficiency?

Back

Efficiency = (Useful Output / Total Input) x 100

Front

What is the unit for work done?

Back

joule (J)

Front

Work done = ______ transferred

Back

energy

Front

What does the g stand for in G.P.E. = m x g x h?

Back

acceleration due to gravity

Front

Which formula links work done, force and distance?

Back

W = F × d

Front

Which is the correct formula to calculate kinetic energy?

Back

KE = 0.5 x m x v^2

Front

How is energy transferred from a power station to people's homes?

Back

Electrically

Front

How is energy transferred from a microwave oven to the food inside it?

Back

by radiation

Front

How is energy transferred when a hammer hits a nail?

Back

mechanically

Front

How is energy transferred from the element of a kettle to the water inside it?

Back

by heating