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by BlastRoom
Compare moving objects and predict how a change in speed changes the mechanical energy they carry.
#speed#us_grade_3_science
20 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
Two soccer balls of the same size roll across a field. One rolls fast and one rolls slowly. Which ball has more mechanical energy?
Two toy cars of the same size roll toward a wooden block. One rolls quickly and one rolls slowly. Which car has less mechanical energy?
A bowling ball rolling fast has more mechanical energy than the same bowling ball rolling slowly.
Two hockey pucks of the same size slide toward a wall. One slides fast and one slides slowly. Which puck pushes the wall harder?
A girl pushes her skateboard along a flat sidewalk again and again, and it goes faster and faster. What happens to its mechanical energy?
A rolling ball crosses thick grass and slows down more and more. What happens to the ball's mechanical energy?
Two bowling balls of the same size roll toward the pins. One rolls fast and one rolls slowly. Which one knocks down more pins?
Two shopping carts of the same size are pushed down an aisle. One moves fast and one moves slowly. Which cart is harder to stop?
When a swing slows down, the mechanical energy it carries increases.
Two wagons of the same size are pulled across a yard. The first moves twice as fast as the second. What can you say about their mechanical energy?
Two sleds of the same size slide down a hill side by side at the same speed. One sled carries more mechanical energy than the other.
A pitcher throws two baseballs of the same size. The fast throw stings the catcher's glove more than the slow throw. Why?
Two scooters of the same size roll toward a line of paper cups. The fast scooter scatters the cups farther. What explains that?
A bike rider stops pedaling and coasts until the bike stops moving. When does the bike have the least mechanical energy?
Two marbles of the same size are released on ramps, and one reaches the floor moving faster. Which marble pushes a paper box farther?
A car on a straight road presses the gas pedal and its speed keeps rising. Predict what happens to its mechanical energy.
Two river rafts of the same size float downstream. One drifts slowly and one races along in the current. Which raft carries less mechanical energy?
A runner speeds up over the last part of a race and then slows down after the finish line. When did the runner carry the most mechanical energy?
Two beach balls of the same size are tossed at a tower of blocks. The slow toss barely moves the tower. What is the best reason?
A wind-up toy walks across a table and slows down as its spring runs out. What will happen to the mechanical energy it carries?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
The Planets in Order
30 questions
