Across

4. a simple device that affects the force required to perform a certain task

7. a push or a pull

8. a substance such as a gas or liquid that tends to flow and take the shape of its container

10. a unit of force

11. a rocky planet

12. a large planet with a deep atmosphere that is mostly hydrogen or helium and a core of icy rocky material

13. the energy of an object that is dependent on its position

14. the path that an object takes as it moves through space, usually around another object

15. the energy an object possesses because of its motion

 

Down

1. the force exerted on an object in liquid by the liquid

2. a unit of measurement equivalent to the distance light travels in one year

3. the force exerted by a large object such as a planet on an object near it

4. a body that orbits a planet

5. a unit of measurement equal to the average distance between the Sun and Earth

6. two or more simple machines working together

9. an arrow whose length represents the strength of a push or pull and tip lies in the direction of the push or pull