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

The motion of an object is determined by the sum of the _______ acting on it

What are forces?

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

If the total force on the object is not zero its motion will ______

Change

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

The greater the ______ of the object, the greater the force needed to achieve the same change in motion

Mass

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

A straight path an object can move along

What is direction

400

Juan and Jose are having an argument about their science book. Juan says that since the book is sitting still, there are no forces acting on it. Jose says there are forces acting on the book. Which student is correct? Explain why

Jose is correct because gravity is a force acting on all objects on Earth. However, the forces are balanced so the book is not moving (the net force on the book is zero).

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

A push or pull that can change an object's motion

What is force

500

Mr. 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

What can cause a change in an object’s motion?

The change in an object’s motion depends on the sum of the forces on the object and the mass of the object.

500

What is the change in an objects position?

What is motion