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Momentum - Impulse Collisions Energy Conservation of Energy Work - Power
100
What is kg m/s
The unit of momentum
100
What is a perfectly inelastic collision?
When objects collide and stick together
100
What is the ability to do work?
The definition of Energy
100
What is 2.94 J
A 60g appel is dropped from a height of 5 meters above the ground. Neglecting air resistance find the appel's kinetic energy just before hitting the ground
100
What is the measure of energy transfer over a distance by an external force?
W=Fd
The definition of work
200
What is inertia in motion. p=mv
The definition of momentum
200
What is an elastic collision?
When objects collide and Kinetic Energy is conserved
200
What is a Joule or kg m2/s2 ?
The unit of energy
200
What is 980,000J?
A 200-kg boulder is held 1000-m above the ground. What is its Potential energy when it is 500m above the ground?
200
What is neither?
Person A and Person B are competing against each other, they both can lift 75 kg boxes 3.5 m off of the ground. Person A lifts her box in 1.5 s and Person B lifts his box in 2.4 s. Which person does more work?
300
What is the product of force and the time interval during which the force acts
The definition of impulse
300
What is 7 m/s?
a 4kg blob of clay moving to the right at 12 m/s collides with a 5 kg blob of clay moving to the right
at 3 m/s. The two blobs of clay stick together. What will be the resultant speed of the clay blobs?
300
What is 15,484J?
The potential energy of a 79 kg cinder block that is sitting on a platform 20 m high.
300
What is 980,000J?
A 200-kg boulder is held 1000-m above the ground. What is its kinetic energy when it is 500m above the ground?
300
What is 200J?
Amy uses 20N of force to push a lawnmower 10 meters. How much work does she do?
400
What is 120 N•s?
A box is pushed for 4 seconds with a force of 30 Newtons. What is the impulse on the box?
400
What is 719 m/s?
A 35g bullet is shot at a 5.00kg block. The bullet lodges itself into the block and the two travel off with a velocity of 5m/s. What was the initial velocity of the bullet?
400
What is 1J?
The K.E. for a 500 g wooden block moving at 2 m/s
400
What is 20.4 meters?
An owl has a mass of 4.00 kg. It dives to catch a mouse, losing 800.00 J of its PE. What was the
starting height of the owl, in meters?
400
What is 0.64 Watt?
If Aimee does 5.1 J of work to move her dresser drawer a distance of 2.3 m and all of this is done in 8 s, how much power has been exerted?
500
What is 780 kg m/s
A 67kg-clown is riding his 11-kg unicycle down the side of the main circus tent. At the bottom of the tent is a middle aged accountant terrified of clowns. Frozen with fear the man does not move and the clown crashes into him with a speed of 10m/s. With what momentum did the clown strike the man?
500
What is 4m/s?
A 3.0 kg object traveling 6.0 m/s east has a perfectly elastic collision with a 4.0 kg object traveling 8.0 m/s west. After the collision, the 3.0 kg object will travel 10. m/s west. What velocity will the 4.0 kg object have after the collision?

500
What is 4 kg?
A rolling ball has 18 J of kinetic energy and is rolling 3 m/s. find its mass.
500
What is 5m?
A 25 kg ball is thrown into the air, going 10 m/s. calculate how high it travels?
500
What is 200 Watt?
If it takes 5 seconds for you to do 1000J of work, what is your power output?






Momentum - Energy - Work - Power

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