5th grade science (force and motion unit)

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created 9 years ago by mgort
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updated 6 years ago by mgort
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1

air resistance

the friction between an object and particles in the air

2

average speed

determined by dividing the trip distance by the total time of the trip

3

balanced forces

exist when all the forces acting on an object result in the object staying at rest or moving at a constant speed in the same direction

4

contact force

a push or pull that touches or comes in contact with an object to change motion

5

direction

the path along which something moves, lies, or points

6

distance

a measurement of how far from each other two points or places are

7

force

is a push or a pull on something

8

friction

a force that acts on an object when it rubs against another object or material

9

graph

is a representation of data plotted on an x-axis and y-axis

10

gravity

a force where on object pulls on another object

11

instantaneous speed

how fast an object moves at a certain point in time

12

load

the object to be moved by the simple machine

13

mass

the measure of the amount of matter in an object

14

motion

the changing of position of an object

15

Newton

a metric unit used to measure the force applied to objects

16

non-contact force

a push or a pull that does not touch an object to change motion

17

point of reference

a background or non-moving object in the background used in describing the motion of another object

18

speed

the measurement of how fast an object travels from one point to another

19

spring scale

is used to measure the approximate weight, or the pull of gravity on an object

20

time

the measurement of the period between events

21

unbalanced forces

exist when all the forces acting on an object result in a change of motion of the object

22

variables

the properties of things that can change, be changed, or vary in an investigation

23

weight

the measure of the amount of gravity pulling on an object