Ramps Flashcards
Newton’s 3rd Law of Motion
For every force object (i) exerts on (ii)
there’s an equal but oppositely directed force object (ii) exerts on (i).
Support Forces
Forces preventing 2 surfaces occupying same space same time
- exerted perpendicular to those surfaces
Downhill Force 2 sources
1) Weight of object (gravity on wagon)
2) Support Force (ramp on wagon)
Horizontal surface = _____ support forces
Vertical
1) Object on flat surface ramp force =? &
2) Tilted ramp force=?
1) 0
2) Increased ramp force & decreased support force
The steeper the slope____
The higher downhill ramp force
Uphill force you exert on wagon equivalent downhill force on wagon,
How will wagon move?
Wagon move constant velocity, may be 0.
Energy
The capacity to do work,
More exhausting give away vs receive energy
Conserved Physical Quantity
Can’t create/destroy it, only move from object -> object
Work
The mechanical means of transferring energy
- = force• distance (in direction of force)
- horizontal motion doesn’t matter,
Only vertical: Increased elevation/altitude
To do work (2) on object
1) have to push/pull on object
2) object must move a distance
(In direction push/pull)
2 forms of energy
Kinetic- energy associated w/ motion
Potential- energy stored in forces
Ex. Gravitational, elastic, magnetic, electrostatic, nuclear & chemical potential energy.
(Individual types energy not conserved, total energy IS)
You transfer energy as you ___ an object.
You receive energy as you ___ an object
Lift
Receive
- More exhausting give away vs receive energy
Conserved Physical Quantity
Can’t create/destroy it; only moves from object -> object.
The higher altitude lifted object = higher ______
Gravitational Potential Energy
