Forces
Forces are measured in this unit
What are Newtons (N)?
Friction is the _____ that opposes the motion of one object as it moves across another
What is force?
Larger objects have more of this
What is gravity/G-force?
Newton's second law gives us this formula related to force
What is F=ma?
Weight is this force acting on an object
The total amount of force on a system
What is net force?
A car tire on a driving car produces this kind of friction with the ground
What is rolling friction?
An object with more mass will experience ______ air resistance than an object with less mass
What is less?
"For every action there is an equal and opposite reaction" is the definition of this law of motion
What is Newton's third law?
According to science, if there is no outside force acting on a system, momentum is _______
What is conserved?
When the net force equals 0 it is known as this
What is balanced?
It is harder to move a block across sandpaper than it is across a smooth table because of this property of the sandpaper
What is roughness?
Projectile motion causes the path of an object to follow this type of motion
What is a curved path?
Newton's first law is also known as the law of ______
What is inertia?
A 1500 kg car drives forward with a velocity of 20 m/s. This is the momentum of the car
What is 30000 kg*m/s?
Mr. Jorgenson pushes a box across the floor with a force of 350 N East. Tyler pushes back against the same box with a force of 100 N West. This is the total net force acting on the box (magnitude and direction)
What is 250 N East?
This type of friction is the strongest type of friction
What is static friction?
When an object is falling from the sky, gravity causes the object to do this
What is accelerate?
According to Newton's third law, the action force of Messi kicking a soccer ball will produce this reaction force
What is the soccer ball acting against Messi?
Mr. Jorgenson drives his 400 kg bumper car and hits Quinn's 360 kg bumper car, causing it to move at a velocity of 10 m/s East. This is the velocity of Mr. Jorgenson's bumper car
What is 9 m/s?
A 1500 kg truck drives forward with a force of 75000 N. The acceleration of the truck is this
What is 50 m/s2?
When the magnitude of fluid friction equals the magnitude of gravity acting on a falling object, this occurs
What is terminal velocity?
A skydiver jumps out of a plane and falls for 40 seconds before hitting a net (assume the net is at ground level). This is the height of the plane when he jumped out
What is 8000 m?
When you are sitting in a car that turns sharply, and you jerk in the direction opposite the direction the car is turning, you are experiencing this property
What is inertia?
Mr. Jorgenson's weight is 1000 N on Earth (Earth's gravity=10 m/s2). Some unknown planet has a gravity of 3.5 m/s2). This is Mr. Jorgenson's weight on that planet
What is 350 N?