Lesson 1
What is collision C?
it's when both objects are moving and hit each other.
What materials were used in "observing collisions lab (vertical)"?
Wood block, rice noodle, marble, golf ball, tennis ball, and cotton.
Do all objects bend or change shape when pushed in a collision?
Yes, all objects bend or change shape when pushed in a collision
What is an independent variable?
An independent variable is the variable to change each time you test and downward force.
What is the difference between collision A and B?
Collision A is when the fragile object is moving first while collision B is when the non-fragile object is moving first
When we watched the video with a car with a golf ball and a car with a CD case colliding, what collision type was it?
Collision type B
When we watched the video of a slow-moving car colliding with a stationary car, what happened?
Both cars changed shape but then went back to it's original form.
What is a dependent variable?
It is the variable to observe the effects caused by changing the independent variable and deformation.
What is the difference between kinetic and potential energy?
Kinetic energy is when something is moving while potential energy is not moving but it 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 little by little bending and eventually broke
What is the difference between an independent and dependent variable?
An independent variable is the cause and a dependent variable is the effect
what is every (most) factors that affect damage in collision?
Speed, size, mass, distance, force, height, angle, gravity, prior damage, material, and temperature
When we watched the video with metal rings on the blue car, what collision type was it?
Collision type B
When we watched the video of a sponge and 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 does the word "Conservation" mean?
Conservation: Energy that isn't created or destroyed, it just changes from.
EX: a swing
Fill in the blank. ___,___, and ___ changes motions and shapes of objects.
Speed, weight, and force changes motions and shapes of objects.
When we watched a video of glass and laser, what happened?
The laser was bouncing
What is the lab lesson?
How much do you have to push on any object for it to deform (temporarily vs. permanently)