Amplify Force and Motion

Amplify Forces Ch 3 L3.4

Agenda: 1. Warm up 2. Sherman's Story 3. Close Reading Wrecking Ball Article 4. Reasoning about the Pod's motion

Objective: I will explain mass of the Pod affected it's velocity change after the collision with the space station.

Standard: MS-PS2-1 Apply Newton's 3rd Law of motion to design a solution to a problem involving the motion of colliding objects.

Warmup Review

How does mass affect objects in a collision?

Poll

Object A is 4x more massive than B, what do you think is going to happen when they collide? (A is moving B is not)

• Object A will slow down, B will speed off

• Object A will bounce back, B will start moving

Multiple Choice

What actually happened?

• A slowed down slightly, and B started moving.

• A bounced off, B started moving.

Poll

Object A is still more massive than B, and now B is moving toward A. What will happen in the collision?

• They will bounce off each other.

• A will slow down slightly, B will bounce off (change direction)

Multiple Choice

What actually happened?

• Object A slowed down, Object B bounced off (changed direction)

• Both objects bounced off each other

Multiple Choice

Which was moving faster before the collision?

• Object A

• Object B

Multiple Choice

Which was moving faster AFTER the collision?

• Object A

• Object B

Multiple Choice

So in summary, if Princess Leia and Wicket (the Ewok little bear guy) collided with exercise ball, who would go flying (have the greatest change in velocity?)

• Princess Leia

• Wicket

Activity 2

Sherman's story (reviewing mass and collisions)

Open Ended

How would you finish the explanation to Sherman? Actually Sherman, the forces in a collision are equal, the effects are different because...

Activity 3 Reading "Wrecking Ball"

Read along with the Wrecking Ball article, then answer the following questions. (Leave the Quizizz open in another window!!)

Multiple Choice

"Wrecking Ball" reflection: How is KINETIC ENERGY related to mass?

• As the mass of the object increases, the kinetic energy increases by the same amount.

• As the mass of the object increases, the kinetic energy decreases.

Multiple Choice

How is the speed of an object affect the amount of kinetic energy it has?

• As the speed increases, the kinetic energy decreases.

• As the speed increases, the kinetic energy increases by the square of the speed of the object.

Open Ended

So how can a wrecking ball destroy a building, but a yo-yo can't? (Try to use the term "KINETIC ENERGY" in your answer!!

Activity 4. Exit Slip Reasoning About the Pod's Motion

Open the Google Form in Google Classroom (End of Quizizz Lesson)