Chapter 7 Flashcards
What is the force that Resists movement between two objects
friction
What is a lubricant
A substance that reduces friction.
Name 2 lubucans used in this Chapter
Water ,Oil ,Soap
What is adhesion
2 different substances sticking together.
What is the law that tells us Objects are attracted to each other according to there mass and distance.
Universal gravitation
Which 2 objects, a basketball and a bowling ball? Would hit the ground first if dropped from the same height
Both they would hit the ground at the same time.
What kind of resistance Force does an object traveling to water Encounter
Drag and water resistance.
How do people resist air or water resistance?
Reduced surface area.
How do people reduce air resistance
Reduce surface area.
What is the speed limit of falling objects called
Terminal velocity
When an object is in freefall. What are 2 resisting forces an object will encounter.
Friction ,gravity
If you are swinging a bucket around with water in it and the water Stays in the bucket, what is the force at hand?
Centripetal force
