| Vocab | Newton's 2nd and 3rd Laws | Friction | Calculations | Miscellaneous |
|---|---|---|---|---|
100What is friction?
The force that opposes motion between two surfaces that are touching each other.
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100What is Newton's second law of motion?
Acceleration= Force/ Mass
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100What is the kinds of surfaces and the force pressing the surfaces together?
The two factors that friction depends on.
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100What is 686 Newtons?
How much does a person with a mass of 70 kg weigh on Earth?
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100What is horizontal and vertical motion?
The reason why projectiles follow a curved path.
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200What is weight?
The gravitational force exerted on an object.
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200What is no?
Whether Newton's Laws ever use velocity in their formulas.
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200What is microwelds?
The areas where microscopic bumps come into contact between surfaces and cause friction.
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200What is East?
Where a 50 kg dolphin swimming 10.4m/s W and a 6,300kg elephant walking 0.11m/s E would fall in the direction of if the two were to collide.
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200What is air resistance?
The reason why an acorn will hit the ground before a piece of plain, unchanged paper.
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300What is centripetal force?
An unbalanced force that causes obejcts to accelerate towards the center.
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300What is Newton's third law of motion?
The law that allows a rocket to use propulsion to get into space.
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300What is static friction?
The type of friction that hasn't been overcome when a cardboard box refuses to move when pushed.
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300What is 1.26km/h?
The acceleration required to use 3150 Newtons of force on a 900N object in km/h.
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300What is gravity?
How the planets stay in orbit around the Sun.
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400What is Newton's third law of motion?
When one object exerts a froce on a second object, the second one exerts a force on the frist that is equal in size and opposite in direction.
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400What is 19.6 Newtons?
The amount of force needed according to Newton's second law of motion for a 2 kilogram math textbook to be lifted off the table.
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400What is static, sliding, rolling, and fluid friction?
The order of the types of friction from most preventative of work to the least.
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400What is 49m/sec?
The velocity of an object falling down for 10 seconds on a planet that has a gravitational acceleration that is half of Earth's.
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400What is jumbo jet sitting on the runway?
The one of the following that has the most momentum: a charging elephant, a jumbo jet sitiing in the runway, or a baseball traveling at 100km/h.
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500What is momentum?
A property that describes how much force is needed to change its motion.
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500What is 150,000 Newtons?
The amount of force needed to move two tons of materials in a construction site at a rate of 3km/h according to Newton's second law of motion.
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500What is terminal velocity?
The term that describes the highest speed and direction a falling object will reach once air resistance increases enough to cancel the force of gravity on it.
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500What is yes?
Whether the following three objects all have the same acceleration on Earth:a red ball weighing 500N dropped onto the floor, a blue ball with a mass of 5 grams thrown from a footop, and finally, a green ball rolled down a ramp.
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500What is space medicine?
*Health Integration:The branch of medicine that deals with the possible heatlh problems that astronauts may experience.
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