Across
- 4. Speed = _________ divided by time.
- 5. If the force of gravity on Mars is 2.65 times the gravity on Earth, to calculate g for Mars, you need to ____ 9.8 by 2.65.
- 6. Kinetic energy increases if this increases.
- 7. A stretched object has this type of potential energy.
- 9. The ENERGY IN for a toaster.
- 10. Stored energy is called _____ energy.
- 14. There are 3 types of nutrients in food that give us energy: carbohydrate, protein and ____.
- 15. If the ENERGY IN is the SAME as the ENERGY OUT, this is called an energy _______.
- 17. The value of this for stretchy objects, such as a spring, shows how stiff the spring is (HINT: 2 words).
- 20. This is the most efficient type of power to generate electricity.
- 21. Energy is measured using this unit.
- 22. This type of assessment makes us think about safety in an experiment.
- 23. This is the least efficient type of power to generate electricity.
- 24. The sun gives out this type of energy.
- 25. A radio gives out this type of energy.
- 26. This type of variable is the one we MEASURE in an experiment.
- 28. The K.E. for a roller coaster is greatest when it is at the _____ of a hump.
Down
- 1. The ENERGY OUT for an oven.
- 2. Food has this type of potential energy.
- 3. The energy a moving object has.
- 8. An object lifted above the ground has this type of potential energy.
- 11. If the ENERGY IN is DIFFERENT to the ENERGY OUT, this is called an energy __________.
- 12. When a ball is thrown straight upwards, its G.P.E. is largest at the ___ of its flight.
- 13. G.P.E. increases if this increases.
- 16. This type of variable is the one that goes on the horizontal axis of a graph.
- 18. Energy cannot be created or destroyed only _____ into different forms.
- 19. The energy content of food is usually given in kJ per 100 _____.
- 27. Electricity is generated when a turbine ____ a coil inside a magnet.