Forces and Motion Flashcards
(13 cards)
What is the mnemonic for speed
Distance = Speed x time (another DUMB STUPID TRIANGLE)
What are forces almost always
Pushes and pulls
Forces can make objects to five things. What are they
Accelerate, Decelerate, Change direction, turn, change shape
What is force measured in
Newtons
What is a pivot
A point around which rotation occurs
What is a balanced moment
Anti-clockwise moments = clockwise moments
What is the moment triangle
Moment= Force x Perpendicular distance
What is pressure
How much force is put on a certain point
What is the pressure triangle
Pressure = Force/Area
What is pressure measured in
N/m2 or pascals
What is the density triangle
Density = Mass / volume (mother drinks vodka)
What makes rollercoasters move
Acceleration, deceleration, change direction, turn
What is the moment triangle
Moment = force x perpendicular distance
