Forces

3. A force from water that pushes things up
6. A force that tries to slow things down when two surfaces rub together
8. A force acting on an object causes the object to change its __________ .
12. A force that tries to slow things that are moving through air
14. When two forces working in opposite directions are not the same strength
15. When objects are not moving
16. The amount of force acting on an object due to gravity
17. They can attract and repel each other; they also attract things made of iron

1. Magnetism is an example of a __________ force.
2. An electric charge
4. The amount of matter in an object
5. The unit of force
7. A force applied to an object by another body that is in direct contact with it
9. A piece of equipment containing a spring that is used to measure forces
10. Water resistance is a force that acts __________ the forward force.
11. A push or a pull
13. The shaping of an object to minimise drag or resistance