lesson #1
What is collision C?
When both objects in a collision are moving at the same time.
What materials were used in "Observing Collisions Lab (vertical)"?
Wood block, rice noodle, marble, couple, tennis ball, cotton.
Do all objects bend?
Yes, all objects bend.
What is an independent variable?
An independent variable is a force (cause)
What is the difference between collision A and B?
Collision A is when the fragile object moves first, but collision B is when the non-fragile object is moving first.
When we watch the video of a car with a golf ball and a car with a CD case colliding, what Collision type was it?
Collision type B.
What happens when a slow-moving car collides with a stationary car?
The stationary car and the moving car both bat inwards, then pop back out
What is a dependent variable?
It is deforation (effect)
What is the difference between kinetic and potential energy?
Kinetic energy is something that is moving, and potential energy is something that has the potential to move.
When we watched the video about the car with rubber stoppers colliding, what collision type was it?
collision type A.
When we watched the huge piece of concrete getting pushed what happened?
The concrete was bending little by little and eventually broke.
What's the difference between an independent and a dependent variable?
An independent variable is the cause, and the dependent variable is the effect.
What are some factors that affect damage in a collision?
speed, size, mass, distance, force, height, angle, gravity, prior damage, material, temperature, etc.
When we watch the video with the metal rings on the blue car, what Collision type was it?
Collision type B.
When we watch the video of a sponge and a laser, what happened?
The laser moved up and down.
What were some controlled variables?
Ruler, spring scale, table, wood block, Surface, rice noodle, coffee stir.
What is the definition of Conservation?
Conservation is energy that isn't created or destroyed it just changes forms
ex: a swing
Fill in the blank. ___,___, and ___ changes motion and shapes of objects.
Speed, weight, and force change the motions and shapes of objects.
When we watched a video of glass and a laser, what happened?
The laser was bouncing.
What was the lab question?
How much do you have to push on any object to get it to deform temporarily versus permanently?