Across
- 3. The force exerted on an object due to gravity. It is equal to the mass of the object multiplied by the acceleration due to gravity. It is measured in Newtons.
- 4. The amount of matter in an object. It is measured in kilograms.
- 6. The product of force and displacement in the direction of the force. It is measured in joules.
- 8. Advantage The ratio of output force to input force in a machine.
- 10. Devices designed to make work easier by either increasing force or changing the direction of force.
- 13. Machines Machines composed of two or more simple machines working together.
- 14. Transfer The movement of energy from one place or form to another.
- 16. Energy Energy that is stored in an object due to its position relative to other objects. It is often associated with gravitational or elastic forces.
- 17. The unit of force in the International System of Units (SI). One Newton is the force required to accelerate a one-kilogram mass by one meter per second squared.
- 19. Capacity The amount of heat energy required to raise the temperature of a substance by one degree Celsius or Kelvin.
Down
- 1. The unit of energy in the International System of Units (SI). One joule is equal to the work done when a force of one Newton is applied over a distance of one meter.
- 2. Efficiency The ratio of output work to input work in a machine.
- 5. Machines Basic mechanical devices with few or no moving parts, such as levers, pulleys, wedges, screws, inclined planes, and wheels and axles.
- 7. Energy Energy possessed by a moving object. It is proportional to the mass of the object and the square of its velocity.
- 9. Anything that has mass and occupies space.
- 11. A push or pull that can cause an object to accelerate, decelerate, or deform. It is measured in Newtons.
- 12. Force The force applied to a machine or system.
- 15. capacity to do work.
- 18. Force The force exerted by a machine or system.