1st
When no forces act on a moving object in space, it will travel in a _____ _____
Straight Line
Whenever the net force on an object is zero, what must be true about the object's acceleration?
It must also be 0
The Earth pulls on you with a force of gravity. If this is an action force, what is the reaction force?
You pull back on the Earth
What is the weight of a 25 kg human ?
250 N
This 2003 movie follows a 6'3' human raised by elves as he returns to NYC
Elf
Suspend your body from a trio of vertical ropes and the tension in each rope will be ____ of your weight
1/3
What is the weight in Newtons of a 2.5kg mass on the Earth's surface?
25N
When gunpowder ignites, and a cannonball is fired from a cannon, which object experiences a greater force - the cannon or the cannonball?
NEITHER. Action-Reaction forces are always equal and opposite.
What force is necessary to cause a 1000kg space shuttle to accelerate away from the Earth at 10 m/s/s?
10,000N
This stop-motion animated movie from Tim Burton counts as a Halloween movie as much as it counts as a Christmas movie
The Nightmare Before Christmas
A package falls off a truck that is moving horizontally at 10 m/s. Neglecting air resistance, the horizontal speed of the package just before it hits the ground is ________
10 m/s
A car has a mass of 200 kg and accelerates at 4 m/s/s. What net force is exerted on the car?
800N
During a tug-of-war, Newton's 3rd Law tells us that both teams experience equal and opposite action-reaction forces. If that is true, what determines who wins the tug-of-war?
Which team exerts a greater force on the ground.
Suzie Skydiver, who weighs 500 N, reaches terminal velocity of 90 km/h. The air resistance on Suzie is then _______
500 N
This movie taught me (and a lot of other stupid children) that your tongue will stick to metal if its cold enough. I still tried it out anyway.
A Christmas Story
Two students engaged in a tug-of-war each pull a rope in opposite directions with a force of 500 N, and neither moves as a result. What is the tension in the rope?
500N
An object on Earth's surface, and an object's on the Moon's surface both have the same weight. Which has a larger mass?
The object on the moon.
DAILY DOUBLE
*Jeopardy theme intensifies*
A student with a mass of 60kg is pulled uniformly down the hallway on a skateboard by another student exerting a constant force of 150N. If there is a 30N force of friction between the skateboard and the floor, what acceleration will the student on the skateboard undergo?
2 m/s/s
This movie lacks the cheer and caroling typical of a Christmas movie, but does feature John McClane defending Nakatomi Plaza from eastern European terrorists.
Die Hard
A magician pulls the tablecloth out from beneath a fully set table, without disturbing any of the plates, forks, glasses, etc. How is this possible?
INERTIA
A contractor exerts a force upwards of 40 N on a bucket of concrete that weighs 20 N. If the concrete has a mass of 2 kg, what acceleration will it undergo?
10 m/s/s
When a hammer strikes a nail, the force it exerts on the nail is equal and opposite to the force the nail exerts back on to the hammer. Since these forces are equal and opposite, they cancel to a net force of 0N. How does this 0N net force cause the nail to be driven into the wood?
The force of the hammer on the nail is greater than the friction of the wood on the nail, and thus the nail is driven in.
An astronaut on another planet drops a 1-kg rock from rest. The astronaut notices that the rock falls 2 meters straight down in one second. On this planet, how much does the rock weigh?
4 N
This black and white Christmas movie is my personal favorite, and stars Jimmy Stewart as a man who tries to take his own life on Christmas Eve, only to be saved by an angel named Clarence who shows him how awful the world would be without him.
It's A Wonderful Life