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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.
A moving object can have a large momentum if it has a large mass, a high speed, or both. True or False?
It is harder to stop a large truck than a small car when both are moving at the same speed. True or False?
Can you think of a case where a roller skate and a truck would have the same momentum?
What factors affect an object’s momentum?
When you push with the same force for twice the time, how much impulse do you impart? How much change in momentum is produced?
If you were in a car that was out of control and had to choose between hitting a haystack or a concrete wall, which one would you choose? Why?
When a dish falls, will the impulse be less if it lands on a carpet than if it lands on a hard floor?
If a boxer can make the contact time five times longer by “riding” with the punch, how much will the force of the punch impact be reduced?
What if the impulse applied is greater than the impulse required merely to bring the object to a stop? What will happen?
Newton’s second law states that if no net force is exerted on a system, no acceleration occurs. Does it follow that no change in momentum occurs?
The vector sum of the momenta is the same before and after a collision.
Momentum is conserved even when interacting objects don’t move along the same straight line.
The impulse-momentum relationship is a direct result of which law of Newton?
When the speed of an object is doubled, its momentum
When a falling object bounces, as it hits the ground, its change in momentum and the impulse on it is ...
On roller blades, you horizontally toss a ball away from you. The mass of the ball is one-tenth of your mass. Compared with the speed you give to the ball, your recoil speed will ideally be
A big fish swims upon and swallows a small fish at rest. After lunch, the big fish has less
What type of collision conserves both total momentum and total kinetic energy?
A 0.20 kg ball initially at rest is kicked and reaches 15 m/s. Calculate the impulse delivered to the ball.
A 1,200 kg car travels east at 10 m/s. Calculate its momentum, including direction.
A 0.50 kg ball moving at 8.0 m/s east is caught and brought to rest in 0.20 s. Calculate the magnitude of the average force acting on it.
A 2 kg cart moving at 6 m/s collides with a stationary 4 kg cart. They stick together. Find their final velocity.
A 0.10 kg ball moves east at 10 m/s and rebounds west at 6 m/s. Calculate the impulse delivered to the ball, taking east as positive.
Two objects collide and stick together. What type of collision is this?
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.
14 questions
