Vocabulary and Thinking Problems
Which is More
Do the Math
Application
Wild Card
100
Momentum is ___________? Hint: provide the formula
What is p= mass X velocity
100
Which has more momentum? A large cargo ship cruising at a speed of 30 m/s, or a small cargo ship cruising at the same speed?
What is the large cargo ship because it has the greater mass (P=M X V)
100
If a 2 N orange falls from a building, the impact force is?
What is 2N
100
What equals the momentum change in an object?
What is impulse
100

Boulder A falls off a cliff. If Boulder B then falls off the same cliff at the same height, but is half as large as the Boulder A, which will have more momentum?

What is Boulder A-it has greater mass so has more momentum. The speed should be equal.

200
In an __________ collision, objects do not stick together, change shape, or change temperature.
What is elastic
200
Which has the most momentum? A. A car at a stop sign. B. A boy running the mile. C. A Blue Whale in the ocean. D. A dog chasing a squirrel.
What is C. a Blue Whale in the ocean. Obviously, this mass is far greater than the others and therefore the momentum will be greater.
200
If two pieces of pizza dough (with equal mass) are thrown at each other (at equal velocity), and stick together, what will their new velocity be?
What is zero.
200
T/F: It is better to decrease the time of impact in a collision.
What is FALSE-it is better to increase the time of impact in a collision. Thus, the longer the impact, the less the force.
200
T/F: Momentum in a system will NOT be conserved if there is an external net force acting on the system.
What is TRUE-conservation of a system is conserved by internal forces equaling out, so therefore any external will make the system unequal, and thus not conserved.
300
What is the law of conservation in momentum?
What is when the total amount of momentum of the two objects in a collision is non-changing. The total momentum prior to the collision is equal to the momentum after.
300
Which has more momentum? A golf ball traveling at a speed of 60 m/s or a golf ball traveling at a speed of 75 m/s?
What is a golf ball traveling at 75 m/s because it has greater velocity. (P=M x V).
300
A 5kg baseball is throw 5 m/s. What is the momentum?
What is 25 kg x m/s
300

When launching a t-shirt out of a t-shirt gun at the United Center, both the __________ and the _________ are the same (equal) for the t-shirt and the gun.

What is force and impact

300
Where is the most unsafe place to stand when firing a cannon that is lighter than the cannonball?
What is behind the cannon ( it will shot back and knock you down due to the momentum of the cannonball.
400

When a gymnast sticks a landing (lands with straight legs and no bent knees), the force on the gymnast's body is greater, lesser, or equal to the force if he/she landed with slightly bent knees.

What is greater. If you do not bend your knees the time of impact is reduced, which causes greater force.

400
How can you increase impact when hitting a baseball?
What is (multiple answers but you could . . .) increase time of contact with ball, increase force of contact with ball.
400
A ball has a momentum of 100 kg x m/s, and a mass of 50kg. What is the ball's speed?
What is 2 m/s
400

An ice skater on the ice is not allowed to skate, but has to try to reach the other side of the ring. Using momentum, how could he/she accomplish this?

What is the skater could throw objects in the opposite direction he/she needs to go.

400

If a 5 kg ball is traveling through the air at a speed of 5 m/s and hits a 2 kg wad of bubble gum that sticks to it, what will be the momentum of the ball be with the gum?

What is 25 kg x m/s (it will have to equal the momentum before it hit the gum, so it would still be 5 x 5 or 25.

500
T/F: Which has greater momentum on a frictionless surface? A. A women and her younger daughter colliding on ice and bouncing off of each other, or B. If they hung onto each other and continued on?
What is B-their mass would increase, which would increase their speed on the surface and thus increase momentum.
500
Which will have more momentum? A freight car moving on a rail, or a freight car at rest on a rail?
What is the car moving due to more speed. IF they collide and stick together, the speed of the freight cars will decrease by half.
500
A 10 kg blob of cookie dough is moving at a speed of 5 m/s and hits a 5 kg blob of cookie dough that it at rest. What is the speed of the cookie dough if they stick together after the collision?
What is 3.3 repeating m/s You would find the momentum of both sets by adding their momentum together: 10 x 5 plus 5 x 0=50. Next, you would add the total initial masses together: 10 + 5=15. Finally, you would divide the total momentum by the total mass to get the final velocity= 50/ 15 = 3.33333 repeating
500

An astronaut floating motionlessly in space throws a space rock (which has more mass than him). Which will move faster through space?

What is the astronaut.

500
Give a real world example of how to lengthen the impact of a collision?
What is Examples: catching a baseball, catching a soccer ball, punching a punching bag, etc . ..
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