The force that opposes motion between two surfaces that are touching each other.
What is friction?
100
Acceleration= Force/ Mass
What is Newton's second law of motion?
100
The two factors that friction depends on.
What is the kinds of surfaces and the force pressing the surfaces together?
100
How much does a person with a mass of 70 kg weigh on Earth?
What is 686 Newtons?
100
The reason why projectiles follow a curved path.
What is horizontal and vertical motion?
200
The gravitational force exerted on an object.
What is weight?
200
Whether Newton's Laws ever use velocity in their formulas.
What is no?
200
The areas where microscopic bumps come into contact between surfaces and cause friction.
What is microwelds?
200
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.
What is East?
200
The reason why an acorn will hit the ground before a piece of plain, unchanged paper.
What is air resistance?
300
An unbalanced force that causes obejcts to accelerate towards the center.
What is centripetal force?
300
The law that allows a rocket to use propulsion to get into space.
What is Newton's third law of motion?
300
The type of friction that hasn't been overcome when a cardboard box refuses to move when pushed.
What is static friction?
300
The acceleration required to use 3150 Newtons of force on a 900N object in km/h.
What is 1.26km/h?
300
How the planets stay in orbit around the Sun.
What is gravity?
400
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.
What is Newton's third law of motion?
400
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.
What is 19.6 Newtons?
400
The order of the types of friction from most preventative of work to the least.
What is static, sliding, rolling, and fluid friction?
400
The velocity of an object falling down for 10 seconds on a planet that has a gravitational acceleration that is half of Earth's.
What is 49m/sec?
400
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.
What is jumbo jet sitting on the runway?
500
A property that describes how much force is needed to change its motion.
What is momentum?
500
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.
What is 150,000 Newtons?
500
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.
What is terminal velocity?
500
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.
What is yes?
500
*Health Integration:The branch of medicine that deals with the possible heatlh problems that astronauts may experience.