Vocabulary
A push or a pull
Force
The beginning and end of motion are always caused by
forces
What is the formula for force?
Force = Mass x Acceleration
If a book is on a table, not moving, the force would be ________________.
Balanced
What is the capital of France?
Paris
Total Force
Net Force
A force that resists motion
Friction
Which of Newton's Laws is this?
An object's acceleration is affected by its mass
Newton's Second Law
If a balloon is floating in the air, not moving, what can you conclude about the forces?
The forces are balanced.
What are piano keys made of?
Ivory
Unit of measure for forces
Newtons
In order for an object to change direction, what type of force needs to be applied (include direction)
An unbalanced force from the side
If there is a box with a mass of 150kg that is pushed at a rate of 3 m/s2, what is the force that was used? Remember to use your units!
450 Newtons
If you threw a ball in a vacuum (where there is no air resistance or gravity), would the ball ever come to a stop? Why?
No, because there are no forces to act against the ball's motion
What kind of tree do acorns come from?
Oak
When two forces act together, they are said to ____________________ each other
Reinforce
Name the 4 types of friction
Static, sliding, fluid, and rolling
The law of inertia is Newton's ________ law
First
Name 2 (bonus points if you get all 3) non-contact forces we covered in this class.
Gravitational, magnetic, and electrical
When did the Chicago Cubs last win the World Series?
2016
When two forces act against each other, they are said to __________________ each other
Counteract
When you throw a ball (or drop a ball), what two forces are acting on the ball?
Gravity and Air Resistance (fluid friction)
Which of Newton's Laws is this?
For every action there is an equal and opposite reaction
Newton's Third Law
What two forces keep our planets in orbit?
Gravity and inertia
How many sides does a nonagon have?
Nine