Show:
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Forces
100

This is the nickname for Newton's 1st law.

The law of inertia.

100

In F=ma, what does the 'a' stand for?

Acceleration

100

What does Newton's 3rd law state?

Every action has an equal and opposite reaction.

100

The unit of force.

Newton

200

An object at rest or an object in motion...(complete the rest)

want to remain that way unless acted upon by an outside force.
200

If you use the same amount of force to push a full shopping cart and an empty shopping cart, why would the empty shopping cart accelerate faster?

It has less mass than the full cart.

200

What are the names of the two equal and opposite forces that act on objects?

Action and reaction forces

200

A(n) ____________ force causes an object to change its motion.

unbalanced

300

Inertia means...

the tendency of objects to resist a change in motion.

300

What amount of force would be needed to push a 10kg bowling ball at 4m/s2?

40N 

300

I push on a wall. What does the wall do to me? (BE SPECIFIC!)

Pushes back with an equal and opposite force.

300

What is the net force of the books on the bookshelf? How do you know?

Zero N - they aren't moving

400
What are three things that can overcome the inertia of a person if their car crashes?

Seatbelt, airbag, windshield, seat, dashboard, etc.

400

What is the mass of a shopping cart that you push at 60N at 2m/s2?

30kg

400

Give an example of a time when it's clear to see the equal and opposite forces being balanced.

Sitting in a chair, pushing hands together, standing on the floor, etc.

400

Give an example of both a contact and distance force. 

Contact: friction, pushing/pulling directly on something

Distance: gravity, magnet holding paper to a board

500
Why does a crash test dummy continue to move forward after a car crashes into a wall?

The dummy is in motion and wants to remain that way (inertia).

500

A motorcycle and an 18-wheeler are stopped at a stoplight. Explain what would happen to the two vehicles if the each driver applied the same amount of force to the gas pedals at the same time. 

The motorcycle would accelerate faster because it has less mass, whereas the 18-wheeler would take longer to accelerate because it has more mass. 

500
Explain why when a baseball makes contact with the bat, the ball goes flying but the bat does not. Use the words equal and opposite in your response.
The ball and bat exert an equal and an opposite force on one another; however, since the ball has less mass, it accelerates away from the bat. 
500

Define net force and give the net force acting on the object that Mrs. Fried shows you.

Net force: the total of all the forces acting on an object

10N