Net Force
This is the meaning of the word "net" in "net force."
What is total?
__________ causes acceleration.
What is force?
This is the equation for Newton's second law.
What is a = f/ m or f = m x a ?
An object in motion stays in ______________.
What is motion?
When comparing a bowling ball and a basketball, this object has more weight (force of gravity).
What is the bowling ball?
If two forces are going in the same direction, this is what you should do to find the net force.
What is add?
F= ________ x a
What is mass
This is the acceleration of a 2 kg ball thrown with 10 N of force? (include a unit!)
What is 5 m/s/s?
This is the nickname for Newton's 1st law.
What is inertia?
When comparing a bowling ball and a basketball, this object has more mass.
What is the bowling ball?
When two forces are equal in magnitude and in opposite directions they are said to be?
What is balanced.
An empty grocery cart and a full grocery cart are pushed with the same amount of force. Which cart will accelerate more?
What is the empty cart?
This is the amount of force needed to make a 10 kg cart accelerate at 3 m/s/s. (include proper unit!)
What is 30 N?
This is the only physical property of an object that changes the amount of inertia the object has.
What is mass?
When a bowling ball and basketball are dropped from the same height at the same time, this is how they land.
What is they land at the same time?
Jimmy pushes a box with 75 N of force. John helps him by pulling in the same direction with 75 N of force. This is the net force on the box.
What is 150 N?
According to Newton's second law, this is why a small, sports car gets better gas mileage than a large, SUV.
What is mass resists acceleration? The SUV has more mass, so it takes more force to make it accelerate.
This is the mass of a hockey puck that accelerates at 5 m/s/s when pushed with 10 N of force. (Unit!)
What is 2 kg?
This is a real life example of Newton's first law.
Many right thoughts here! Examples: Seat belt, moving forward in a car, athlete who has trouble stopping suddenly, a golf ball not moving just because you yelled at it, etc.
This force explains why a flat paper and crumpled paper fall at different rates.
What is air resistance?
If force remains constant and you double the mass, it is said that this happens to the acceleration.
What is halved?
Some people say that Newton's first law is really just Newton's second law describing a situation in which the acceleration is this amount because the force is this amount.
What is zero?
These formulas show Newton's second law written two different ways with capital and lower case letters to compare the acceleration of objects with different masses. (rearrange the 2nd Law equation)
What is a = F / M and a = f/m?