| A | B |
|---|
| Define energy ? | The ability to do work or cause change,  |
| Define work (in terms of energy) | The transfer of energy, |
| Define power (give both definitions) | the rate at which work is done or the amount of work done in a unit of time |
| What is the formula for calculating power? | power=work(energy transferred)/Time |
| What is the SI unit for power? | Watt(W) |
| What is kinetic energy? | the energy of motion,  |
| What is the name for energy that is stored? | Potential energy (PE),  |
| How do you claculate kinetic energy? | KE=mass x velocity2/2 |
| When does an object have maximum kinetic energy? | When it reaches maximum velocity remeber the formula k.e = mass times velocity that is squared divided by 2 |
| Which type of energy is associated with object that can be stretched or compressed? | Elastic potential energy,  |
| How do you calculate gravitational potential energy? | weightxheight |
| What would determine an object's maximum gravitational potential energy? | more height then the more potential energy The more mass more potential gravitation energy |
| What is the mechanical energy, and is it kinetic or potential? | associated with motion and position of an object,  |
| What is the total energy of the particles in an object? | Thermal energy |
| What is chemical energy, and is it kinetic or potential? | energy stored in chemical compounds |
| What is the energy of moving electrical charches? | Electical energy |
| Describe electomagnetic energy is? | results from the motion of particles within the atoms that make up matter. |
| How do you know when thermal energy of an object increases or decreases? | when thermal energy increases, the object gets warmer |
| What is the potential energy stored in the core of an atom called, and where can it be found? | Nuclear Energy |
| Which types of energy can you find in your body? | The fuel for our pody is stired in the food we take in and breakdown the chemical bonds in the meat andf plants we eat. That is chemical ennergy, We have kinetic energy of muscles moving, We have potentia;l energy stored when we are about to jump. We have thermal energy in the body heat. We have some electical energy in the nervous sytem that tells are muscles to move. |
| Where do the sun's energy come from? | The high heat of the sun cause the fusion of nucleus and this releases huge ammount of heat and ligh as electromagnetic energy,  |
| What is energy transformation? | the change from one form of energy to another |
| What does the law of conservation of energy state? | states that energy can not be created or distroyed |
| What does friction do to the energy of an object? | transforms the mechanical energy of the object to thermal |
| How does a light bulb work? | When you turn on a light bulb it converts that electrical energy to electromagnetic energy,  |
| Define fossil fuels. | material that are burned to release their chemical energy.,  |
| GIve 3 examples of fossil fuels. | coal,petroleum,natural gas |
| Where does the energy from fossil fuels come from, and how does it get there. | comes from the sun., |
| How is the energy of fossil fuels released? | The the plant and animal matter is burned and the bonds are broken energy released. |
| How do you calculate work? | Work equal Force x distance |
| How do we represent 1000 of our SI units? | > |
