Dynamics

Energy Transfers

100

This is what happens to energy when work done in a system

What is the energy is transferred?

200

This energy change takes place in a wind turbine

What is Kinetic → Electrical?

300

This number represents how many different forms of energy exist

What is 8?

400

This energy change takes place in bioluminescent fish

What is chemical → light?

500

These three energy changes take place in a nuclear power station

(x → x → x → x)

What is Nuclear → Heat → Kinetic → Electrical?

Efficiency

100

This energy is lost in a system

What is wasted Energy?

200

This process is how we would take a decimal efficiency and make it a percentage

What is multiplying by 100?

300

These two forms of energy are the most common wasted energies

What are heat and sound?

400

This number is the maximum efficiency possible

What is 100%?

500

This law of physics places a maximum on efficiency

What is conservation of energy?

Work Done

100

This is the unit of force

What are Newtons?

200

This is the unit that work done is measured in

What are joules?

300

This is what work done is a measure of

What is energy transfer?

400

These are the two factors that affect work done

What is force and distance?

500

This is the work done on a go-kart travelling with a force of 250N for 1km

What is 250000J

Potential and Kinetic

100

This is the definition of Kinetic energy

What is kinetic energy is the energy a moving object has?

200

This is the equation for potential energy

What is E_p = mgh?

300

These are the two factors that affect kinetic energy

What are mass and velocity?

400

This is why an object stores potential energy when it has been raised

What is work has been done on the object?

500

This factor has the most impact on kinetic energy

What is velocity?

Conservation of energy

100

This is where an object has its highest potential energy and lowest kinetic energy

What is its maximum height?

200

This is why in practice the kinetic energy may be slightly lower than the potential energy

What is some energy is wasted?

300

This is how the amount of energy in the universe has changed since the beginning of time

What is its the same / it hasn't changed?

400

These two energies can be equated due to conservation of energy

What are kinetic and potential energy?

500

This equation can be used to calculate the speed of an object when it hits the ground using its height and the gravitational field strength

What is v = √(2gh)?