Unit 1 Lesson 1 - Introduction to Forces Flashcards Preview

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Flashcards in Unit 1 Lesson 1 - Introduction to Forces Deck (13):
1

a push or a pull

force

2

scientists measure force using a unit called the

newton

3

the speed of an object in a particular direction

velocity

4

the rate at which velocity changes over time

acceleration

5

the size of the force and direction

magnitude

6

force is a _____ quantity (in fancy terms)

vector

7

the sum of the forces

net force

8

to get something in balance, you need an....
(where one force is pushing or pulling harder then the other force) (the net force is not zero)

unbalanced force

9

a force where both sides are pushing or pulling equally so no side is moving (the net force is zero)

balanced force

10

the resistance a surface puts on anything sliding over it

friction

11

the friction of the air molecules

drag

12

the change of speed or direction

velocity

13

a force of attraction between objects that is due to their masses and that decreases as the distance between the objects increases

gravity