1. a change in the path of a moving object
change of direction
a change in the path of a moving object

2. a change in direction, speed, or position of a moving object
change of motion
a change in direction, speed, or position of a moving object

3. direction terms
describe where the object is moving right, left, north, south, east, west, forward, backward, up, down

4. force
a push or pull on something A force is needed to change the motion of something.

5. a force due to rubbing It can change the way things move.
friction
a force due to rubbing It can change the way things move.

6. distance
the measurement of how far an object moved from one point to another or how far apart objects are from one another

7. a force where one object pulls on another object.
gravity
a force where one object pulls on another object.

8. a metric unit used to measure distance 1 km = 100 meters
kilometer
a metric unit used to measure distance 1 km = 100 meters

9. the amount of matter in a substance or an object
mass
the amount of matter in a substance or an object

10. meter
a metric unit used to measure length or distance 1 meter = 100 centimeters

11. any changing of position of an object
motion
any changing of position of an object

12. roll, hop, jump, skip, bounce, fly, walk, slide
motion terms
roll, hop, jump, skip, bounce, fly, walk, slide

13. position the way in which something is placed or arranged
Ex: away, toward, above, below, behind, between, through

14. a force or effort that moves something toward the force
pull
a force or effort that moves something toward the force

15. a force or effort that moves something away from the force
push
a force or effort that moves something away from the force

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

17. fast, faster, fastest speeding up, slow, slower, slowest, slowing down
speed terms
fast, faster, fastest speeding up, slow, slower, slowest, slowing down

18. a period during which something takes place
time
a period during which something takes place
Time is measured in seconds, minutes, hours, days, weeks, months, and years.

19. the measurement of the force of gravity on the mass of an object
weight
the measurement of the force of gravity on the mass of an object

20. simple machine
A simple machine makes it easier to push, pull, lift, or lower objects.