Question

how do we measure forces? how did we learn that forces are equal? what two ideas do we combine to realize the third law of newtonian physics? what is a sentence scramble, and what are the rules of a sentence scramble? what is a variable? something that change

Explanation:

1. Forces are measured using a device called a force - meter (or spring - scale). We learned forces are equal through Newton's third law of motion and experiments that show for every action there is an equal and opposite reaction.
2. Newton's third law combines the ideas of action and reaction forces. For every force exerted by one object on another, there is an equal and opposite force exerted by the second object on the first.
3. A sentence scramble is a word - game where the words in a sentence are mixed up, and the goal is to rearrange them to form a grammatically correct sentence. Rules usually include using all the given words, following grammar and punctuation rules.

Answer:

1. Forces are measured with a force - meter. We learned forces are equal from Newton's third law and related experiments.
2. Action and reaction forces are combined to realize Newton's third law.
3. A sentence scramble is a word - game with mixed - up sentence words. Rules: use all words, follow grammar and punctuation.