Vocabulary Part 1
The location of an object - it is important to know this first when describing motion
Position
A push or a pull
Force
A device used for finding the distance something traveled
ruler, meter stick, yard stick, measuring tape
The soccer ball rolls across the gym floor, slowing down to a stop.
Friction
Ash held a 10 second race between his Pokemon. Charmander ran 4 meters. Bulbasaur ran 2 meters. Squirtle ran 7 meters. Dragonite ran 9 meters. Name the result of the race with the fastest Pokemon first.
Dragonite
Squirtle
Charmander
Bulbasaur
the process of change in an object's position
motion
This is calculated using distance and time and it shows how fast or slow an object is moving
speed
A tool used to measure time.
stopwatch or clock
The pencil is sitting still, unmoving, on the desk.
Josephine ran 300 meters in 1 minute. What is her speed?
300 m/min
The force that happens when two objects rub against each other
Friction
Tells which way a line points using words like up, down, left, right, north, south, etc.
Direction
An object will have a change in motion if the forces are ______________ (equal or not equal). Why?
not equal.
If they are equal, they are balanced. If they are balanced, there is no change in motion.
Mrs. Davis pushes the stone box seat under the table.
Unbalanced Force
Ms. Stephanie is walking some horses at the zoo. The horses start to run in opposite or different directions. Which direction will Ms. Stephanie be pulled?
Towards the horse that is using the bigger, stronger force, even if that is a smaller horse.
When measuring how far apart something is, this measurement is the ______________.
distance
_____________ forces cancel each other out when acting on an object.
Balanced
What are the 4 ways we measure and talk about motion?
Distance, Time, Speed, and Direction
When hitting a nail into the wood, the person swinging the hammer is using a pushing or pulling force?
Push
Jerry has a pet cow. Tommy has a pet dog. Both animals are enjoying sitting on the barn floor and do not want to move. Jerry and Tommy are pushing the cow and the dog, so who is using more force? Why?
Pushing a cow uses more force because it is bigger and heavier.
These forces cause a change in motion because one force is stronger than the other.
Unbalanced Forces
These forces result in no change in motion. It could be because they are equal and opposite in direction.
Balanced Forces
In order to find the speed, what two tools do you need and what do they measure?
ruler/distance tool and stopwatch/time tool
The force that makes an object move.
Unbalanced forces
A puppy and his owner are playing with a rope. The dog is pulling hard, but the rope does not move. What does this tell you about the force the puppy and owner are using?
Their forces must be balanced and equal.