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by BlastRoom
Explore mechanical work, force direction, and the rate of energy transfer.
#matatag_science_8
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.
In which action does a person's applied force do positive mechanical work on an object?
How is mechanical work classified?
The pictured block moves 5 m to the right. What work does friction do on it?
The pictured box moves 3 m to the right. What work does its upward support force do?
For fixed force and displacement magnitudes, which angle between them gives the greatest work?
Joshua raises a 120 N box through 2 m at constant speed. How much work does his upward force do?
A 30 N force pulls a block 4 m at 60 degrees to its displacement. Using , find the work done by this force.
The crate travels from the bottom to the top of the pictured ramp. What work does the effort force do?
The pictured block moves 4 m to the right. What is the total work done by the forces shown?
Liza climbs the school stairs. How is the work done on her by gravity classified?
What does a machine's power tell you?
A motor does 20 J of work in 5 s. What is its average power?
Paolo and Ramon each perform ten identical barbell lifts, starting and ending each upward lift at rest. Their total upward-lifting times are 60 s and 10 s, respectively. How do their average lifting powers compare?
Mia raises her 42 kg body by 0.25 m in 2 s, starting and ending at rest. What is her average lifting power? Use .
A hoist delivers 300 W while transferring 3,600 J to a load. How long does the lift take?
A 500 W blender runs for 8 s. How much electrical energy does it use?
A machine completes twice as much work as before in the same time. What happens to its average power?
Which measurements are needed to estimate a student's average power while climbing stairs, if gravitational acceleration is known?
A kilowatt-hour is a unit of which physical quantity?
An appliance uses 5.5 kWh. How much energy is this in joules?
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.
Conservation of Energy and Hydroelectric Power
20 questions
