4. Group the following words into three columns: nouns, adjectives and verbs. Some of them fit into more than one column.
Force, different, meaning, use, electrical, gravity, magnetism, nuclear, atom, mechanical, push, pull, scientific, mean, shape, motion, object, change, scientist, describe, day, pencil, page, place, law, straight, line, continue, stay, rest, inertia, action, equal, opposite, reaction, direction, magnitude, combine, give, remain, constant, velocity, person, friction, oppose, cancel, result, cart, breakthrough, acceleration, mass, definition, part, frictional, drop.
| NOUNS | ADJECTIVES | VERBS |
5. Match each word from the text with its synonym:
1. force a) form
2. motion b) weight
3. shape c) application
4. definition d) discovery
5. use e) power
6. breakthrough f) determination
7. mass g) movement