FHS Physics: February 2021

Friday - February 26th, 2021 (Asynchronous)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to predict the amount of work done when using a machine.

Bellwork:

What has been the most challenging part of this unit for you? What do you plan on doing today (and in to next week) to work on this in preparation for the test?

Daily Plan:

Unit 8 Review

Homework:

Prepare for the Unit 8 Test!

Thursday - February 25th, 2021 (50/50 Virtual Block)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to solve problems involving the mechanical advantage of machines.

Bellwork:

When solving problems involving torque, when do you need to pay attention to the mass of the lever itself?

Daily Plan:

Homework:

Lever Lab

SEEL Extension:

Tuesday - February 23rd, 2021 (50/50 Virtual Block)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to solve problems involving the mechanical advantage of machines.

Bellwork:

A 435 N diver stands at rest at the end of a diving board as shown in the diagram above. The diving board is bolted to the metal stand on the left and is resting on top of the metal stand in the middle. Determine the force provided by each stand to keep the board at rest. (Assume the board is perfectly straight and has no mass)

Daily Plan:

Lever Lab

Homework:

Machines Practice #3

SEEL Extension:

Friday - February 19th, 2021 (Asynchronous)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to predict the amount of work done when using a machine.

Bellwork:

Two objects are placed on one side of the fulcrum of a 1st class lever. The first object has a mass of 2.15 kg and is placed 0.35 m from the fulcrum. The second object has a mass of 1.25 kg and is placed 0.65 m from the fulcrum. If the mass of the lever is negligible, what force would would have to be exerted at a distance of 0.45 m on the opposite side of the lever to keep the lever at equilibrium?

Daily Plan:

Homework:

HQ: Torque (DUE 2/25 END)

Thursday - February 18th, 2021 (50/50 Virtual Block)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to solve problems involving the mechanical advantage of machines.

Bellwork:

What are the three classes of lever? How can you differentiate them from each other?

Daily Plan:

Homework:

Machines Practice #3

SEEL Extension:

Monday - February 15th, 2021 and Tuesday - February 16th, 2021

No School - President's Day & Flex Day

Friday - February 12th, 2021 (Asynchronous)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to predict the amount of work done when using a machine.

Bellwork:

Compare and contrast the three different classes of lever.

Daily Plan:

Homework:

N/A

Thursday - February 11th, 2021 (50/50 Virtual Block)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to solve problems involving the mechanical advantage of machines.

Bellwork:

How can you determine the ideal mechanical advantage of a pulley system? How would you measure the actual mechanical advantage of a pulley system?

Daily Plan:

Homework:

Pulley Lab

SEEL Extension:

Tuesday - February 9th, 2021 (50/50 Virtual Block)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to solve problems involving the mechanical advantage of machines.

Bellwork:

An inclined plane is created with a length of 12.5 m at an angle of 31.5 degrees above the horizontal. If a force of 315 N is applied parallel to the ramp in order to move a 42.5 kg box, what is the efficiency of the inclined plane?

Daily Plan:

Homework:

Inclined Plane Lab

SEEL Extension:

Friday - February 5th, 2021 (Asynchronous)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to predict the amount of work done when using a machine.

Bellwork:

How can you increase the ideal mechanical advantage of an inclined plane? How can you increase the ideal mechanical advantage of a wheel and axle?

Daily Plan:

Machines at Home Activity (Part 1 Only!)

Homework:

N/A

Thursday - February 4th, 2021 (50/50 Virtual Block)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to solve problems involving the mechanical advantage of machines.

Bellwork:

How do machines make work "easier?". What do machines NEVER do?

Daily Plan:

Homework:

Machines Practice #2 and HQ

SEEL Extension:

Tuesday - February 2nd, 2021 (50/50 Virtual Block)

Daily Objective:

Students will be able to describe how a machine makes work "easier," and will be able to solve problems involving the mechanical advantage of machines.

Bellwork:

A machine is created that is found to be 75% efficient. The machine is used with an effort force of 235 N over a distance of 15.5 m to move a resistance force of 450 N. How far does the resistance force move?

Daily Plan:

Homework:

Machines Practice #1

SEEL Extension: