Solve the final speed: 2 cars each with a mass of 2 kg are headed toward each other at 5 m/s, what would be the SPEED of each car after a perfect elastic collision?
5 m/s
Oops!
Check
Okay!
Check
15
Which scientist did the work on momentum?
Newton
Oops!
Check
Okay!
Check
baam
Lose 25 points!
Oops!
rocket
Go to first place!
Okay!
fairy
Take points!
5
10
15
20
25
banana
Go to last place!
Oops!
lifesaver
Give 15 points!
Oops!
seesaw
Swap points!
Okay!
shark
Other team loses 25 points!
Okay!
baam
Lose 25 points!
Oops!
15
Spencer says something weird and Mr. Rodd says "take your hand and smash your face back and forth into your hand". Is their an Impulse happening to the hand?
YES!
Oops!
Check
Okay!
Check
15
What is the unit for momentum?
kg*m/s
Oops!
Check
Okay!
Check
15
It is correct to say that impulse is equal to
A) momentum.
B) the change in momentum it produces.
C) the force multiplied by the distance the force acts.
D) velocity multiplied by time.
B) the change in momentum it produces.
Oops!
Check
Okay!
Check
20
You're driving down the highway and a bug spatters into your windshield. Which undergoes the greater force during the time of contact?
Both the same.
Oops!
Check
Okay!
Check
10
Two objects have the same size and shape, but one is much heavier than the other. When they are dropped simultaneously from a tower, they reach the ground at the same time, but the heavier one has a greater
momentum.
Oops!
Check
Okay!
Check
15
Compared to the force that brings a small car to a stop, the force required to bring a heavy truck to a stop
A) is less.
B) is more.
C) is the same.
D) impossible to determine without additional information
D) impossible to determine without additional information
Oops!
Check
Okay!
Check
20
Which would produce more force: driving into a very massive concrete wall with no "give," or having a head-on collision at the same speed with an identical car moving toward you with the same speed?
A) car
B) wall
C) both the same
C) both the same
Oops!
Check
Okay!
Check
20
What are the 2 situations for INelastic collisions?