Force and Motion

Net Force

100

The combination of all forces acting on an object

Net Force

200

When the force is equal in strength and opposite in direction, it does not result in a change in motion and is known as a _____________ force. 

Balanced

300

Calculate the Net force when arrow A is pointed right with a magnitude of 3N and arrow B is pointed right with a magnitude of 5N. 

 8N

400

Calculate the Net force when arrow A is pointed right with magnitude of 5N, arrow B is pointed right with magnitude 3N, and arrow C is pointed left with magnitude 6N. 

2N

500

Calculate the Net force given the mass is 3kg and the acceleration is 2.5m/s. Hint: F=ma

7.5N

Gravity

100

True or False: Gravity is only present on Earth. 

False

200

Which two factors determine the strength of gravity? 

Mass and Distance

300

When the mass of an object increases, what happens to the gravitational force of the object? 

Gravity increases

400

When the distance between two objects increases, what happens to the gravitational force between the objects? 

Gravity decreases

500

Describe the relationship between distance and gravitational force. 

Inverse Relationship, (When one increases, the other decreases) 

Collisions

100

What do we call it when two objects apply a force to each other? ex) Car crash

Collision

200

What are the two types of collisions we investigated with bouncy balls and clay? 

Elastic vs inelastic

300

True or False: When two objects collide, one or both objects may change speed or direction. 

True

400

Which type of collision occurs when two objects collide, and energy is not conserved? 

Inelastic

500

Which type of collision is considered "safer"?

Elastic Collisions

Electric & Magnetic

100

True or False: Using a stronger magnet will pick up less paperclips than a weaker magnet. 

False

200

When you rub a balloon on your head, the balloon becomes negatively charged. What subatomic particles moved from your hair to the balloon to cause this? 

electrons

300

Two factors that affect the strength of magnetic force.

Magnet size/strength and distance

400

Two factors that increase the strength of electric force

(Hint: Must explain if the factors given are increasing or decreasing)  

Increasing charge and decreasing distance

500

Choose the materials that would result in the most magnetic force when building an electromagnet. 

Nail Type: Iron / Steel / Aluminum

Coils: 10 / 20 / 40

Batteries: 1 / 2 / 3

Iron, 40 coils, 3 Batteries

Scientific Notation

100

Convert to standard form

3.2 x 10⁴

32,000

200

Convert to standard form

3 x 10⁶

3,000,000

300

Convert to standard form

5.12 x 10^-5

0.0000512

400

Convert to Scientific Notation

46,700,000

4.67 x 10⁷

500

Convert to Scientific Notation

0.0000007

7 x 10^-7