Speed
Speed is a measure of distance covered per unit of this.
Time
Acceleration can be changing when driving at a constant speed if this is changing.
Direction
This is the hang time for most athletes.
less than a second
A free falling object will increase its speed by about this much every second
10 m/s
A car moving or a car sitting still will continue to do so due to this.
Inertia
There are this many centimeters are in 1 meter
100
One possible unit of speed is mph which stands for this
miles per hour
Acceleration of a moving object is determined by measuring this and dividing it by time.
Change in speed/velocity
One a basketball player has jumped in the air his acceleration is now this
10 m/s downward gravity (g)
In a vacuum all objects fall at this rate
The same
A car accelerating from a rest at 4 meters per second squared will take this to reach a speed of 80 meters per second
20 seconds
This is the base unit for volume in the metric system
liter
Speedometers measure this type of speed
Instantanteous
Falling objects have this type of acceleration
constant
A ball that has been thrown in the air and reached its peak height has this instantaneous speed
0 m/s
A free falling object falls from a rest for 4 seconds will have about this speed.
40 meters per second
A car travels 5 meter each second for 5 seconds. it has this type of acceleration
constant
50 m/s north represents this vector
velocity
Another possible unit for speed is m/s which stands for this
meters per second
Each second an object falls if travels a farther distance than the second before when the object is undergoing this.
Freefall
A ball that has been thrown in the air and reached its peak height has this acceleration
about 10 m/s
A projectile launched straight up at a velocity of 80 meters per second will take this long to land back on the ground.
16 seconds
Instantaneous speed for a car can be seen on its this
Speedometer
This is represented by the slope of a line on a distance time graph
Speed
A light year is a measure of time.
False
A ball tossed in the air is always under the acceleration of gravity in this direction
Downward
This is a factor other than gravity that can influence the rate of a free falling ball
air resistance
A free falling object falls from a rest for 1 second will have traveled about this far.
5 meters
This is what stops a car from moving that is not air resistance
Friction
These are the base units for mass
grams