Flashcards
Physics Unit 2
Cards in this deck (30)
- 1What are the two methods of adding and subtracting vectors?Tip to tail method and tail to tail method
- 2What does the tip to tail method look like?The tip to tail method connects the tip of one vector to the tail of another.
- 3What does the tail to tail method look like?The tail to tail method connects the tail of one vector to the tail of another.
- 4When do you use the tip to tail method?You only use the tip to tail method if the equation has more than two additives.
- 5ForceA push or pull on an object, force requires physical contact except for forces produced by fields (gravitational. electric, and magnetic)
- 6What are forces modeled by?Forces are modeled by vectors.
- 7What is the magnitude of vector F?How hard the push or pull is on an object (newton or pounds)
- 8What is the direction of vector F?The direction of the push or pull
- 9What is the F of gravity?Weight
- 10What are kinematics?The study of motion, specifically excluding the causes of motion (forces)
- 11What are the 3 kinds of graphs used for kinematics?Position vs. Time Graph, Velocity vs. Time Graph, Acceleration vs. Time Graph
- 12What do all three graphs have in common?All three graphs represent history in time of motion of an object.
- 13SlopeRise over Run (Y/X) or average vertical axis variable over horizontal axis variable (Vav/Hav)
- 14What are the two kinds of slopes?Average and instantaneous slope
- 15Average SlopeAverage over a specific interval of time
- 16Instantaneous SlopeVelocity at a specific instant of time
- 17What does speeding up on an x-t graph mean?The instant velocity is increasing, the slope of the tangent line becomes more steep as time flows
- 18What does slowing down on an x-t graph mean?The Instant velocity is decreasing, the slope of the tangent line is becoming less steep
- 19What does rest mean on an x-t graph mean?The slope of the tangent line is horizontal.
- 20What does moving right on an x-t graph mean?Positive direction, the slope is positive
- 21What does moving left on an x-t graph mean?Negative direction, the slope is negative
- 22What are the two types of graphs?Vector graphs and history graphs
- 23What does positive velocity on a v-t graph mean?Right, the velocity is positive
- 24What does negative velocity on a v-t graph mean?Left, the velocity is negative
- 25What does rest on a v-t graph mean?The velocity is equal to 0
- 26What is time in physics?A stopwatch reading
- 27What does speeding up on a v-t graph mean?Upward constant acceleration, line going upward diagonally
- 28What does slowing down on a v-t graph mean?Downward constant deceleration, line going downward diagonally
- 29What does constant velocity on a v-t graph mean?The velocity is at a constant number, the line is horizontal
- 30AccelerationChange in velocity over elapsed time
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- Physics Unit 2 in Mr. Lovell's class
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- laurendavidson
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