# Shared Flashcard Set

## Details

Motion
Chapter 1 of the Motion and Forces unit
20
Science
09/11/2011

Term
 position
Definition
 The ________________ of a place or an object is the location of the place or object.
Term
 reference point.
Definition
 A location to which you compare other locations is a
Term
 distance
Definition
 This is the amount of space between two things.
Term
 total distance of a path.
Definition
 Marcus is planning to hike the trail at Brady’s Run Park from the playground area to the lake. To figure the distance he will be walking, Marcus should use
Term
 meter (m).
Definition
 The standard unit that scientists use to measure distance is the
Term
 Motion
Definition
 ________________ is defined as the change of position over time.
Term
 farther
Definition
 A faster object moves ________________ than a slower object over the same amount of time.
Term
 frame of reference.
Definition
 To those of us in the room, Jonathan appeared to be sitting still. To an astronaut orbiting the Earth, though, he would appear to be moving along with the planet. In science, we call the different points of view
Term
 Speed
Definition
 ________________ is a measure of how fast something moves, or the distance it moves, in a given period of time.
Term
 distance and time
Definition
 To calculate speed, you need to know these two measurements.
Term
 velocity
Definition
 The bus carrying the football team was traveling south on route 65 at 30 m/s. This is a description of the ________________ of the bus.
Term
 vector
Definition
 A _________________ is a quantity that has both size and direction.
Term
 speed
Definition
 The bus carrying the high school band was traveling at 30 m/s. This is a description of the __________________ of the bus.
Term
 acceleration
Definition
 This is the rate at which velocity changes with time.
Term
 vectors.
Definition
 Velocity and acceleration are both A. speeds. B. distances. C. positive. D. vectors.
Term
 speeding up
Definition
 If you had positive acceleration on your skateboard, you would be A. speeding up. B.slowing down.
Term
 speeds up.
Definition
 When the acceleration is in the same direction as the motion of the object, the object A. speeds up. B. slows down. C. sits still.
Term
 slow down.
Definition
 If acceleration was in the opposite direction that your bike was traveling, you would A. speed up. B. slow down. C. remain still. D. crash/cry
Term
 a right angle to the motion
Definition
 Where would acceleration need to come from in order for an object to change the direction of it’s motion?A. the direction of motion B. the opposite direction of motionC. a right angle to the motion D. none of the above
Term
 time
Definition
 A lower case “s” is the unit that we measure __________________ in.
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