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by BlastRoom
Calculate speed and acceleration and read motion off distance-time and speed-time graphs.
#us_grade_8_science
40 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
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Answer, then tap to leap the frozen ridge.
A school bus drives 900 meters along a straight road in 60 seconds without changing pace. What is the bus's speed?
A runner covers 200 meters of track in 25 seconds at a steady pace. How fast was the runner moving?
A remote-control car crosses 45 meters of hallway in 15 seconds without speeding up or slowing down. What speed do these measurements give?
A ferry crosses 3,600 meters of harbor in 300 seconds, holding one steady pace. What is the ferry's speed?
Between two stations a train covers 4,500 meters in 90 seconds. What was the train's average speed over that stretch?
A swimmer finishes 150 meters of a pool lane in 120 seconds. What is the swimmer's speed?
An elevator rises 84 meters in 12 seconds at a constant pace. What is its speed?
A kicked soccer ball rolls 24 meters across level grass in 6 seconds. What speed does that work out to?
A hiker walks 8,000 meters of trail in 4,000 seconds. What was the hiker's average speed?
A delivery drone flies 250 meters straight to a rooftop in 20 seconds. What is the drone's speed?
A sprinter leaves the blocks at 0 m/s and reaches 9 m/s in 3 seconds. What is the sprinter's acceleration?
A car on a ramp goes from 8 m/s to 24 m/s in 4 seconds. What is its acceleration?
A lab cart rolling along a track slows from 12 m/s to 2 m/s in 5 seconds. What is the cart's acceleration?
A motorcycle speeds up from 5 m/s to 35 m/s in 6 seconds on a straight road. What acceleration do those numbers give?
An elevator starts from rest and reaches 3 m/s in 6 seconds. What is its acceleration?
On its takeoff roll an airplane goes from 40 m/s to 88 m/s in 12 seconds. What is the airplane's acceleration?
A cyclist pedals harder and goes from 3 m/s to 11 m/s in 4 seconds. What is the cyclist's acceleration?
Braking into a station, a subway train slows from 20 m/s to a stop in 8 seconds. What is the train's acceleration?
On a distance-time graph, a delivery van's line stays flat at 400 meters from 30 seconds to 50 seconds. What was the van doing then?
A distance-time graph for a scooter is a straight line from 0 meters at 0 seconds to 120 meters at 60 seconds. What is the scooter's speed?
A distance-time graph for a dog rises steeply from 0 to 10 seconds, then rises much less steeply from 10 to 30 seconds. When was the dog moving faster?
On a distance-time graph a hiker's line slopes downward from 300 meters at 40 seconds to 0 meters at 100 seconds. What is the hiker doing?
A distance-time graph for a cyclist rises from 0 to 200 meters between 0 and 25 seconds, then stays flat to 40 seconds. How far from the start is the cyclist at 40 seconds?
A distance-time graph for a bus is one straight line from 0 meters at 0 seconds to 500 meters at 50 seconds, with no bends. What does that straight line show?
A distance-time graph for a ball rolling down a ramp curves upward, getting steeper every second from 0 to 6 seconds. What does the curve show?
A distance-time graph for a walker reads 90 meters at 30 seconds, 90 meters at 45 seconds, and 210 meters at 75 seconds. How far did the walker travel between 45 and 75 seconds?
A train's distance-time graph is a straight line reading 600 meters at 20 seconds and 1,800 meters at 60 seconds. What is the train's speed over that interval?
Two distance-time lines start at the origin of the same graph. Line A reaches 90 meters at 30 seconds. Line B reaches 90 meters at 45 seconds. What does that show?
A speed-time graph for a bicycle is a straight line falling from 24 m/s at 0 seconds to 4 m/s at 10 seconds. By how much does its speed change each second?
A speed-time graph for a truck is a flat line at 15 m/s from 0 seconds to 30 seconds. What is the truck doing?
A speed-time graph for a skateboarder falls in a straight line from 18 m/s at 0 seconds to 0 m/s at 6 seconds. What is happening?
A speed-time graph for a scooter rises from 0 m/s at 0 seconds to 12 m/s at 8 seconds, then holds that value to 20 seconds. How fast is the scooter at 15 seconds?
A speed-time graph for a tram is a straight line from 2 m/s at 0 seconds to 18 m/s at 8 seconds. What is the tram's acceleration?
On a speed-time graph a car goes from 0 to 10 m/s between 0 and 10 seconds, then from 10 m/s to 30 m/s between 10 and 15 seconds. When did it gain speed faster?
A speed-time graph for a bus drops to 0 m/s at 25 seconds and stays at 0 m/s until 40 seconds. What was the bus doing between 25 and 40 seconds?
A student walks 40 meters east in 20 seconds, turns around, and walks 40 meters west in 20 seconds, ending where she began. Which statement describes the walk?
A jogger runs one full lap of a 400-meter circular track in 100 seconds and finishes at the starting line. What is her displacement for the lap?
A car drives around a curve while its speedometer stays at a steady 15 m/s. The car's velocity is changing.
A ferry sails 800 meters east in 200 seconds, then 800 meters west in 200 seconds back to its dock. What was its average velocity for the whole trip?
Speed tells you both how fast something is moving and the direction it is moving.
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40 questions
