Name: ______Date: ______Homeroom: ______

Do Now:[WU1]

  1. What three variables does Newton’s Second Law address?
  2. Mass, volume, and force
  3. Force, inertia and acceleration
  4. Mass, acceleration and force
  5. Volume, weight and speed
  6. If force is increased and mass stays the same, what happens to acceleration?
  7. It increases
  8. It decreases
  9. It stays the same
  10. A bowling ball is rolled down an alley. A force of 12 N is required to increase the speed of the ball from a rate of 1 m/s to 5 m/s in 4 seconds. What change would require less force to produce the same acceleration? BE CAREFUL, MAKES SURE TO READ…
  11. Reducing the mass of the ball
  12. Increasing the mass of the ball
  13. Making the ball more smooth
  14. Rolling the ball uphill

[WU2]

Newton’s Second Law Lab (Newton’s Race)

In this lab, we will be exploring what happens to force when the mass of an object increases and the acceleration remains the same. We will be working with cars where we will assume the acceleration of the car is constant – that the car increases its speed as it comes down the ramp at the same rate no matter what the mass of the car is. The distance the car is able to travel from the bottom of the ramp is the measure of the force it exerts.[WU3]

In order to complete this assignment, you will have the following materials:

-Play-dough, electronic scale, ruler, three notebooks, whiteboard, calculator[WU4]

You will be using the whiteboard and notebooks as a ramp and applying different amounts of play dough to the car to change its mass. You can add mass by adding play-dough to the top of the car. You must keep track of the mass using the scale, and measure the distance traveled in centimeters using a ruler.[WU5]

Part 1: Hypothesis[WU6]

  1. When do you think the car will travel the furthest distance?

______

  1. When do you think the car will travel the shortest distance?

______

  1. How do you think the mass of the car will affect the distance traveled (amount of force applied)?

______

Part 2: Procedure[WU7]

Discuss with your partners how you are going to conduct this lab. You must make the car have three separate masses and roll the car down the ramp at least once for each mass. You also must construct a data table to collect your data in.

Brainstorm out-loud for one minute, then

  1. Write a summary of what you are going to do here:

______

  1. What data are you going to collect? (you must collect this in some sort of data table)

______

Part 3: Observations

  1. Complete your data table and collect your data here:[WU8]

Mass of the Car (g) / Distance Traveled / Average Distance (cm)
(to find average distance: add up the three trials and divide by three)
Trial 1 / Trial 2 / Trial 3

Part 4: Analysis

  1. How did the mass of the car affect the amount of force the car exerts?

______

  1. How does Newton’s Second Law apply to what you observed in your group?

______

[WU1]

3 minutes:

Students will enter and find their lab seats.

In the hall, I will instruct them to check the whiteboard for their seating assignment and find their seats accordingly. Once seated, scholars should begin their do nows.

[WU2]

3 minutes:

Hook/Expectations.

Today is day 2 of tryouts. I am seeing how we can work as a team, in a new environment of seats and expectations.

Class expectations:

-Body-faced tracking. Your body should be turned in the speaker’s direction when they are speaking.

--During group talk, you should be following the speaking expectations clearly.

[WU3]Read this as a class.

[WU4]

Show slide of materials

[WU5]Continue reading as class

[WU6]

4 minutes

Group Discussion: What will the difference be between the car that has more mass and the car that has less mass?

Set expectations for how to discuss this. Partner closest to the front door will begin, and the speaker should rotate counter clockwise, 20 seconds a piece.

After discussion, begin writing down answers.

Go in a circle, clockwise. When done, begin writing.

[WU7]

4 minutes:

Show slides on how to conduct lab.

3 minutes:

Then, give scholars 3 minutes to write down what they are doing (CFU).

Same as before. Each partner shares out, then whole group writes…

[WU8]

15 minutes

(2 minutes) Assign group roles

  1. Set up and breakdown
  2. Measurements
  3. Data Collector
  4. Executor

Set noise expectations and where to stand expectations. Scholars should only be standing in their areas.

If a car goes sideways, do your best to make it travel straight…