Force and Motion

• How do you solve any physics problems? 1. DAP; 2. KNU, 3. EQN, 4. SSF, 5. CYA

• Why should "Donkey Kong Eat Stray Cats" when solving physics problems?

12/8 - List 3 units you could have for each of the following:

Distance, Speed, Acceleration (IS 168), Mass.

12/11 - Do Assess Your Understanding questions in the Interactive Science Book Pg. 168.

12/12 - Read "North Korea: A Nuclear Threat" pgs. 8-11 in ScienceWorld 11/20/17

1. What is a nuclear weapon?

2. Why are nuclear weapons a cause for concern?

3. What is being done to reduce the nuclear threat?

12/13 - "Super Slide", pgs. 12-13 in ScienceWorld 11/20/17

How did engineers make the slide safe?

12/14 - Do a Test Correction on a question you missed or likely missed on the "Solar System Test".

1/2 - Find the weight you would be at different places in the solar system.

1/3 - Using yesterday's Warm-up:

Label three columns: Weight (Newtons), Acceleration of Gravity (m/s2), and Mass (kg)

1/4 - Using yesterday's Warm-up:

Use your Weight in Newtons and your Mass in kg to calculate the acceleration of gravity for Jupiter, Saturn, Uranus, Neptune, and Pluto.

1/5 - Explain Newton’s Second Law Using at Least 2 of these concepts:

• Throwing a Ping pong ball and a Bowling ball

• Pushing an Empty Shopping Cart and a Full Shopping Cart

• Stopping a Bicycle and a Train

• Arnold Schwarzenegger and Mr. Gilbert playing tug of war

1/8 - A 1 kg cart is being pulled to the right by force of 2 N.

• 1. Draw a picture with arrows for all of the forces acting on the cart (ie. free-body diagram)

  2. Find the Acceleration of the cart.

1/9 - A 50 kg crate is being pushed with a force of 150 N while it slides to the right. The sliding friction is 100N. Answer the following questions:

1. Draw a picture with arrows for all of the forces acting on the crate (ie. free-body diagram)

2. Find the Net Force acting on the crate.

3. Find the Acceleration of the crate.

1/10 - List 4 different examples for each of the following: Sliding Friction, Static Friction, and Fluid Friction (Hint: usually gases are thought of as fluids in friction problems)

1/11 - Why is rolling friction usually less than sliding friction?

1/16 - Summarize the expectations for a 3 from the Crash Test Dummies Lab rubric.

1/17 - Solve the Momentum problems 1 and 2 on IS pg. 189.

1/19 - How does the collision of pool balls show the Conservation of Momentum? or PhET Collisions Lab

1/22 - Solve the Before and After problems of the "Non-Sticky Collisions" on page 190 of Interactive Science book.

1/23 - Solve the "Sticky Collision" problem on page 191.