Show:
Net Force
2nd Law Concept
2nd Law Math
1st Law Concept
100

This is the meaning of the word "net" in "net force."

What is total?

100
__________ causes acceleration.
What is force?
100
This is the equation for Newton's second law.
What is a = f/ m or f = m x a ?
100
An object in motion stays in ______________.
What is motion?
200

If two forces are going in the same direction, this is what you should do to find the net force.

What is add?

200
Mass __________________ acceleration.
What is resists? (Or something similar)
200
This is the acceleration of a 2 kg ball thrown with 10 N of force? (include a unit!)
What is 5 m/s/s?
200
This is the nickname for Newton's 1st law.
What is inertia?
300

Jack and Jill move a pail of water.  If Jack pushes with 10 N of force and Jill pulls with 15 N of force in the same direction, this is the net force on the pail.

What is 25 N?

300

An empty grocery cart and a full grocery cart are pushed with the same amount of force. 


This is the cart (empty or full) that will accelerate more.

What is the empty cart?

300
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?
300
This is the only physical property of an object that changes the amount of inertia the object has.
What is mass?
400

Jimmy pushes a box with 75 N of force. Friction works against him with a force of 10 N.  This is the net force on the box.

What is 65 N?

400

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.

400
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?
400
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.
500
When an object falls, eventually it reaches a point where the downward force is equal to the upward, drag force. This term describes this moment where the net force is zero.
What is terminal velocity?
500

Mrs. Brown and Mr. Slight both throw a football of the same mass. According to Newton's second law, this is why Mr. Slight's football will accelerate more.

What is Mr. Slight has big muscles that can apply more force?

500
This is how much a 20 kg rope will accelerate when the purple team pulls with 85 N to the right and the silver team pulls with 105 N of force to the left.
What is 1 m/s/s?
500
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?