Projectile motion is a combination of the downward force of ______ and a horizontal force. Projectiles follow a _____ path.
gravity, parabolic or curved
100
What is momentum?
Momentum is inertia of motion. The momentum of an object is related to it’s mass and velocity.
100
Which of the four types of friction occurs between an ice skate blade and ice?
Sliding Friction
100
Name which of Newton’s Laws of Motion (1, 2, or 3) apply to this situation:?A tablecloth is yanked out from underneath a glass of water, without tipping/spilling any water.
Newton’s 1st Law
100
Which comic book hero lives in the city of Metropolis?
Superman
200
Define terminal velocity.
Terminal velocity is where the downward force of gravity equals the upward force of friction. (Object is falling at a constant speed.)
200
What is gravity, or a gravitational force?
Gravity is a force of attraction between all objects.
200
Which of the four types of friction occurs as a tennis ball is hit through the air?
Fluid Friction
(remember liquids and gases are fluids!)
200
Name which of Newton’s Laws of Motion (1, 2, or 3) apply to this situation:?At a racetrack, the least massive car wins the race.
Newton’s 2nd Law
200
What is the shade of a Tiffany lamp made of?
stained glass
300
If all objects fall at the same rate on Earth (9.8 m/s2), why does a rock hit the ground faster than a feather? Explain!
On Earth, there is air resistance (fluid friction) that slows the fall of the feather.
300
What two factors affect the strength of gravity?
Gravity depends on mass and distance between objects.
300
Which of the four types of friction occurs between the tires of a bicycle and a road surface?
Rolling Friction
300
Name which of Newton’s Laws of Motion (1, 2, or 3) apply to this situation: The farther a trampoline is stretched downward, the higher a person will be bounced into the air.
Newton’s 3rd Law
300
What constellation represents a hunter with a prominent belt and sword?
Orion
400
Name the four types of friction and give an example of each.
Sliding Friction: sled sliding down hill
Rolling Friction: wheels on a car
Fluid Friction: feather falling through air
Static Friction: gem paperweight sitting on Stepanek’s desk
400
Name the four universal forces. Which is the strongest and weakest force?
Which of the four types of friction occurs between oiled pistons (moving parts) in a car engine?
Fluid Friction
400
Name which of Newton’s Laws of Motion (1, 2, or 3) apply to this situation: ?Passengers not wearing seatbelts are thrown through the windshield of their car in an accident.
Newton’s 1st Law
400
What animal species coined a phrase describing very cold temperatures? "Cold enough to freeze the balls of a brass _____."
monkey
500
Inertia, which means the tendency of objects to _____ _____ _____ _____, comes from the Latin word meaning “idle” or “lazy.”
resist changes in motion
500
The SI unit for force is a Newton. Explain/show what SI units actually form a Newton. (Think F = m x a)
1 N = 1 kg x 1 m/s2
500
lubricant is a material that changes _____ friction into _____ friction.
sliding, fluid
500
Name which of Newton’s Laws of Motion (1, 2, or 3) apply to this situation: A cannon moves backward after firing.
Newton’s 3rd Law
500
What is the name for what an archer carries his arrows in?