Burning fossil fuels releases sulfur oxides into the atmosphere. What negative environmental effect can sulfur oxides cause?
Acid rain
A bungee jumper with mass 71 kg stands at the top of a bridge 42 m high. How much gravitational potential energy is the jumper storing? g = 9.8 N/kg
29224 J
What is the name of the movement energy store?
Kinetic energy
By what process does heat energy move through a vacuum?
Radiation
A toaster transfers electrical to thermal and light. Which type of energy is considered wasted?
Light
An elastic band with a spring constant of 1.2 J/m is stretch 14 cm. How much elastic potential energy does it store?
0.01J
When you burn coal, the chemical energy is transferred as what type of energy?
Thermal + Light
A Bike and rider of mass 65 kg is travelling with a velocity of 2.3 m/s. How much kinetic energy is the biker and rider storing?
172 J
Name 3 sources of renewable energy
wind, solar, wave, tidal, geothermal, gravitational potential energy
What type of energy is transferred around a circuit?
Electrical
A horse of mass 102 kg is running at a velocity of 3.9 m/s. How much kinetic energy is the horse storing?
776 J
A cars brakes transfer the kinetic energy of a moving car into what type of energy?
Thermal
A laptop transfers electrical energy to light, sound and thermal. Which type of energy is considered wasted?
Thermal
What type of energy is store in a battery?
Chemical Energy
A roller coaster has 2500J of gravitational energy at the top of a loop. (assuming there is no friction) How much Kinetic energy does it have on the ground at the bottom of the loop?
2500J
By What process does heat energy move through a gas or liquid?
Convection
A runner of mass 55 kg is travelling with a velocity of 1.3 m/s. how much kinetic energy is the runner storing?
46 J
What type of energy is store in the nucleus of an atom?
Nuclear energy
Energy from the sun is transferred to earth as what type of energy?
Light
A TV transfers electrical energy in to what 3 types of energy?
Light, Sound and thermal
Can energy be created?
No, only stored or transferred
What gas is a product of burning fossil fuels, that contributes to the greenhouse effect?
Carbon Dioxide CO2
What is the name of the energy store when objects are up high?
Gravitational potential energy
A roller coaster car with mass 55 kg is 23 m above the ground. How much gravitational energy is it storing? g = 9.8 N/kg
12397 J
What type of energy is stored in a sandwich?
Chemical Energy
Name three sources of energy which are fossil fuels
Oil, Coal and Natural Gas
What type of energy is stored in fuels such as coal?
Chemical energy
When a tennis ball is drop it transfers gravitational potential energy into which type of energy?
Kinetic
A pen with mass 100g sits on a desk 1m above the ground. How much gravitational potential energy is the pen storing? g = 9.8 N/kg
0.98 J
What is the force used by the brakes of a bike, to transfer kinetic energy into thermal energy?
Friction.
What source of energy is non renewable, but not a fossil fuel?
Nuclear (Uranium 235)
Friction is a force which transfers energy in what form?
Thermal (heat) energy
By what process does heat energy move through a solid?
Conduction