Lesson 1 Motion
The EXACT place where an object is
(Location)
What is POSITION?
How figure skaters use science to control their spins
SLOW spin: Arms OUT wide
FAST spin: Arms CLOSE to her body or STRAIGHT UP
What is a PENDULUM?
What is a tension force?
PULLING force that STRETCHES something
Force that pulls two objects toward each other
What is GRAVITY?
Some words that describe the position of an object
What are
1. TO THE RIGHT OF
2. BEHIND
3. ABOVE
What can you learn when you observe patterns of motion
What is PREDICT how an object WILL MOVE?
Weight
BOB
What is a spring force?
When an object that has been stretched SNAPS BACK into original position
What happens when forces are balanced?
The WAY and object FACES
What is DIRECTION?
To tell what WILL HAPPEN in the FUTURE
What is PREDICT?
What are contact forces?
Forces between objects that are TOUCHING
What is friction?
Stopping force
Goes against the motion of an object
What happens when forces are unbalanced?
Unbalanced forces are NOT EQUAL and the object will move in the direction of the LARGEST FORCE.
The position of an object COMPARED TO the position of ANOTHER OBJECT
What is RELATIVE POSITION?
Example of a pattern of motion that is EASY to SEE
1. Playground swing moves BACK AND FORTH
2. Seesaw goes UP AND DOWN
A push or a pull
What is a FORCE?
What are noncontact forces?
Cause a push or pull on an object WITHOUT TOUCHING it
What is NET FORCE?
CHANGE in POSITION
What is MOTION?
Pattern of motion that is harder to see
Sound speakers on a TV move BACK AND FORTH
(Vibrate)
What does it mean to EXERT?
PUT A FORCE
Three noncontact forces
1. Gravity
2. Electricity
3. Magnetism
A math problem
1N + 1N = 2N
1N + -1N = 0
What is an EQUATION?
(1,000 miles away)
What is DISTANCE?
Examples of how motion can CHANGE
2. SLOW DOWN
3. CHANGE DIRECTION
How does force affect the motion of an object?
1. START / STOP
2. CHANGE DIRECTION
3. CHANGE SPEED
A force that can exert a pull on objects such as IRON
What is MAGNETISM?
What happens when there is a net force of 0?
Forces are BALANCED and there is NO MOVEMENT
The measure of HOW FAST or HOW SLOW an object moves
(55 miles per hour)
What is SPEED?
What happens when an object doesn't follow a pattern
Motion can be VERY HARD to PREDICT
How does the length of string affect the amount of time the pendulum swing?
The LONGER the STRING the
LONGER the pendulum will SWING
How do maglev trains work?
MAGnet & LEVitation
POWERFUL MAGNETS cause trains to float above a track and move forward.
What did we learn about motion in our ping pong ball and golf ball experiments?
An object at ___ stays at ___
An object in ___ stays in ___
An object at REST stays at REST
An object in MOTION stays in MOTION
until it's acted upon by an unbalanced force
What happens when two objects of the same shape are dropped from the same height at the same time?