Across
- 1. force that resists the motion of two surfaces that are touching
- 4. fuel, nonrenewable energy resource made of the remains of ancient organisms and is burned as an energy source
- 6. ability to cause change
- 8. transmitted by electromagnetic waves
- 11. of conservation of energy, states that energy can be transformed but energy cannot be created or destroyed
- 13. positively charged centers of atoms
- 14. energy resource, energy resource that is used faster than it is replaced
- 15. energy, due to motion
- 17. energy, stored energy due to interactions between objects or particles
- 18. energy, total energy of an object or group of objects due to large-scale motions and interactions
Down
- 1. means dug up
- 2. energy, transfer to an object by a force, making the object move in the direction of the force
- 3. energy, sum of kinetic and potential energy of the particles in matter due to their random motion
- 5. energy resource, energy resource that cannot be used up
- 7. energy, carried by an electric current
- 9. energy resource, energy resource that is replaced as fast as, or faster than, it is used
- 10. energy, carried by electromagnetic waves
- 12. energy, stored in the nucleus of an atom
- 16. energy, carried by sound