science
What is the biggest difference between speed and velocity?
Both include distance and time, but velocity also includes direction.
acceleration
Change in velocity; An object is accelerating if it starts, stops, speeds up, slows down, OR changes direction
speed
How fast an object is moving, must have both distance and time
velocity
Speed (distance and time) of an object plus its direction
A subway travel East at 45 km/hr
Velocity
Acceleration formula
a=vf-vi/t
A runner slows to a stop as he gets tired
acceleration
Change in speed Slow down Change in velocity Speed up Change direction
acceleration
A student rode her bike to a friend's house. She traveled 30 meters in 5 minutes and stopped one time along the way.
average speed
dvt straight diagonal line upwards
constant
svt straight line
constant
A car traveled at the same speed of 110km/h around an oval track.
constant speed
distance formula
d=sxt
A dog ran at a speed of 5m/s for 5 min. Then the dog changed its speed to 3m/s.
negative acceleration
dvt curved downward line
negative acceleration
dvt straight line
rest
svt straight line on bottom
rest
svt diagonal line going down
slowing down
A 1 kg marble rolls a distance of 35 feet in 20 seconds
speed
Sally runs 7 km/h for 25 minutes
speed
Time Distance cm/sec 50 km in an hour
speed
speed formula
speed = distance/time
svt diagonal line going up
speeding up
dvt curved upward line
speeding up acceleration
A truck traveled southward on a road at 60km/h.
velocity
Time Distance Speed Direction West at 90 km/h
velocity
