LESSON 1: What happens when two things hit each other?
In a collision the objects must be in ___________.
contact
What happens to the physical shape of objects that are in a collision?
They deform
True or false, all objects bend in a collision to some degree.
true
The maximum amount of deformation an object can withstand, beyond which they will crack.
breaking point
What happened to the deformation of objects on the cart when the force increased?
increased
In a collision sometimes objects are __________ but not always.
damaged
How were we able to see the rubber stoppers on the cart deform?
We used a slow motion camera
What device could we use to show that really rigid objects like a table are actually moving?
Laser
The maximum amount of deformation object's can withstand, beyond which the deform permanently.
elastic limit
As we increased the mass of one of the carts the action force of the cart was (equal/not equal) in strength to the reaction force of the other cart.
equal
After a collision the _______ of one or both objects changes.
motion
What does deform mean?
to bend
Name three really solid objects that deformed from the slow motion video.
car bumpers, baseball and bat, golf club and golf ball
What had a greater elastic limit (bend without breaking or permanently deforming) three noodles or one noodle?
three noodles
A student with a rubberband on his index fingers pulls on the rubber with his left index finger with 10 newtons of force, how much force is exerted on the rubberband with the student's right index finger?
10 Newtons
When one object hits another it is referred by scientists as a _________.
collision
Which object surpassed it's elastic limit and broke, the cart with the golf ball or the cart with the CD case?
CD case
The glass had mirror tape on it. We reflected a laser off of the mirror tape.When we dropped the golf ball on the glass the mirror tape bent with the glass.
As the force increased on the coffee stir the deformation of the coffee stir _______.
increased
Which device can be used to measure a force in Newton's.
push/pull spring scale
What are three ways two objects can collide?
Object A can hit stationary object b. Object B can hit stationary object A. Object A and B hit when both objects are moving.
Which two objects deformed on the carts but maintained their shape after the collision?
The metal rings and the rubber stoppers.
What five ways objects can move in a collision?
objects start, stop, speed up, slow down, and change direction
How much a solid object deforms for a given amount of force applied to it is dependent on which three variables?
thickness,material it is made of, and it's shape
When objects of different speeds or masses collide, their forces are always ______ in strength and ______ in direction.
equal/opposite