Speed
A car travels 20 kilometers in 4 hours. What is the car’s speed?
5km/h
What is the formula for distance?
Speed x Time
What is the formula for time?
Distance divided by speed
What is displacement?
Distance in a given direction
What is the formula for acceleration?
Change in Velocity divided by time taken
What is the formula for speed?
Distance divided by time
The unit for distance is ....
Meters and Kilometers
The units for time are ......
A cyclist rides 5 km north, then 3 km south. What is the displacement?
2km north
A car speeds up from 0 m/s to 20 m/s in 10 seconds. What is its acceleration?
2m/s2
The unit for speed is ....
m/s or km/h
A cyclist rides at an average speed of 18 km/h for 1 hour 45 minutes. How far does the cyclist travel?
31.5km
A runner moves at a constant speed of 5 m/s and travels 60 m. How long does the runner take?
12 seconds
A student walks 6 m north, then 8 m east, and finally 6 m south. What is the student's displacement from the starting point?
8m east
A car slows down from 25 m/s to 5 m/s in 10 seconds. What is its deceleration?
-2m/s2
What does a horizontal line mean on a distance-time graph?
Object is stopped
What does constant speed look like on a Distance-Time graph?
A straight, diagonal line
A plane travels 750 km at an average speed of 500 km/h. How long does the journey take (in minutes)?
90 minutes
How do displacement and velocity differ?
Displacement is distance in a given direction. Velocity is speed in a given direction.
What does a horizontal line on a Speed-Time graph mean?
Object is moving at a constant speed
How do speed and velocity differ?
Speed measures how fast an object is moving, Velocity measures how fast an object is moving and in which direction