Share Basic Physics - Chapter Two
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Speed is...
how fast something moves
the direction something moves
how fast and in which direction something moves
What does velocity include that speed does not?
distance
direction
time
What is distance?
how far something travels
how fast something travels
the straight-line path from start to finish
What is displacement?
the speed over time
the total path traveled
the change in position with direction
Which word describes a change in speed, direction, or both?
distance
velocity
acceleration
What is momentum?
mass x velocity
speed x time
distance / time
Which object would have the greatest momentum (p = m x v)
a heavy object moving fast
a light object moving fast
a light object moving slow
a heavy object moving slow
Which unit is commonly used for speed?
meters per second
north
seconds
meters
Which example shows a velocity?
5 m/s west
5 s
5 m/s
5 m
Which of these has a displacement of zero?
walking 5 m south
walking 5 m north
walking 5 m north and then 5 m west
walking 5 m north and then 5 m south
An object is accelerating when it...
changes speed or direction
moves at the same speed in a straight line
is not moving
If an object slows down it is...
not accelerating
accelerating
Which would likely have more momentum?
a truck going 10 m/s
a parked car
a bike going 30 m/s
Distance and displacement are the same when...
the object stops
direction changes
the object moves in a straight line
Two horses run at the same speed. Which has more momentum?
the horse with less mass
the horse with more mass
both horses have the same momentum
A runner travels 20 meters in 5 seconds. What is the speed?
4 m/s
