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CPO Physical Science Chapter 4 Questions and Answers (2023 / 2024) (Verified Answers) CA$16.00   Add to cart

Exam (elaborations)

CPO Physical Science Chapter 4 Questions and Answers (2023 / 2024) (Verified Answers)

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CPO Physical Science Chapter 4 Questions and Answers (2023 / 2024) (Verified Answers) force is an action force comes from what interaction between atoms and energy four elementary forces strong nuclear, electromagnetic, weak, gravity strong nuclear force hold nucleus of at...

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  • May 28, 2024
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  • 2023/2024
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CPO Physical Science Chapter 4 Questions
and Answers () (Verified Answers)
force
is an action



force comes from what
interaction between atoms and energy



four elementary forces
strong nuclear, electromagnetic, weak, gravity



strong nuclear force
hold nucleus of atoms together. strong but reaches short distance



electromagnetic force
positive and negative charges. holds atoms together in molecules



weak force
force creates some kind of radioactivity



gravity force
all masses attract each other. you weight comes from mass of the earth attacking the mass of your
body



one pound = how many kg of mass
0.454 kg



how many newtons does it take to change the speed of a 1 kg mass by 1 m/s in 1 second ?
1



one pound of force = how many newtons
4.48 N



at earths surface, 1 kg of mass feels like how many newtons ?
9.8 newtons

, equation to calculate weight
W= mass X strength of gravity



force vectors include info to tell what
direction and strength of the force



what happens when you apply a compression force to a spring?
it collapses to become shorter



fluid friction
friction where an object moves through fluid meaning either gas or liquid



fluid friction example
swimming through a pool



rolling friction
friction between a rolling object and the surface it rolls on



rolling friction example
bike



static friction
friction in which two surface are not moving past each other



static friction example
trying to push a heavy couch across a carpet



sliding friction
friction where 2 surfaces slide past one another



sliding friction example
pushing a hockey puck on an ice rink

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