Objective: SWBAT calculate problems invovling rotational kinematics.
Warm Up: Pick up your graded papers.
3.8 rad = ? rev
22 rpm = ? rad/s
50 degrees = ? rad
Tuesday, November 15, 2011
Monday, November 14, 2011
11/16
If you missed Friday's test, you must make it up today or Tuesday A lunch!
Objective: SWBAT understand angular velocity, acceleration, and rotational kinematics.
Warm Up: Turn in your outline.
Why is it more fun to ride on the outer horse on a merry-go-round?
Objective: SWBAT understand angular velocity, acceleration, and rotational kinematics.
Warm Up: Turn in your outline.
Why is it more fun to ride on the outer horse on a merry-go-round?
Tuesday, November 8, 2011
11/9
Objective: SWBAT review for tomorrow's test.
Warm Up: Turn in your Ch 7 HW now. Can centripetal force do work on an object?
Warm Up: Turn in your Ch 7 HW now. Can centripetal force do work on an object?
11/8
Objective: SWBAT begin reviewing for Thursday's test.
Warm Up: Find your review sheet for Work, Power, and Energy.
A 70 kg diver dives from a board that is 3 m above the water. He leaves the board going upward at 6 m/s. (Assume he essentially goes straight up, then comes straight down, missing the board). What is the divers momentum when he leaves the board? How high above the board will the diver go? At what speed will the diver hit the water (assuming no air resistance)?
Warm Up: Find your review sheet for Work, Power, and Energy.
A 70 kg diver dives from a board that is 3 m above the water. He leaves the board going upward at 6 m/s. (Assume he essentially goes straight up, then comes straight down, missing the board). What is the divers momentum when he leaves the board? How high above the board will the diver go? At what speed will the diver hit the water (assuming no air resistance)?
Monday, November 7, 2011
11/7
Objective: SWBAT design a landing pad that will safely bring an egg that falls from the ceiling to the floor of the classroom to rest without cracking.
Warm Up: Get into your teams. Pre-read your lab. THEN pick up the materials from Mrs. Heyes.
Warm Up: Get into your teams. Pre-read your lab. THEN pick up the materials from Mrs. Heyes.
Friday, November 4, 2011
11/4
Wednesday was Test Day. Thursday we took notes on Impulse- Momentum Theroem and Conservation of Energy. This next unit is short but sweet, so stay on top of your studies!
Objective: SWBAT understand how momentum factors into car accidents and explore ways that car manufacturers have used the Impulse-Momentum Theroem to reduce injuries from car crashes.
Warm Up: Rhonda (whose mass is 55 kg) is driving 55 mph in her sports car when she crashes into a tree. She is not wearing her seat belt and therefore the steering wheel stops her in 0.01s. Compare the force on Rhonda from this crash to a crash in which her seat belt and an air bag stop her in 0.4 s.
Objective: SWBAT understand how momentum factors into car accidents and explore ways that car manufacturers have used the Impulse-Momentum Theroem to reduce injuries from car crashes.
Warm Up: Rhonda (whose mass is 55 kg) is driving 55 mph in her sports car when she crashes into a tree. She is not wearing her seat belt and therefore the steering wheel stops her in 0.01s. Compare the force on Rhonda from this crash to a crash in which her seat belt and an air bag stop her in 0.4 s.
Tuesday, November 1, 2011
11/1
Objective: SWBAT review for tomorrow's test on work, power and energy.
Warm Up: Turn in your HW. Get out yesterday's review sheets.
A 0.5 kg football is thrown at an angle of 50 o with an intial velocity of 8 m/s from a height of 1.5 m. What is the PEg of the ball at the top of it's trajectory? What is KE at the top of it's trajectory? If the ball is caught at the same height that it was thrown, how much work did gravity do on the ball?
Warm Up: Turn in your HW. Get out yesterday's review sheets.
A 0.5 kg football is thrown at an angle of 50 o with an intial velocity of 8 m/s from a height of 1.5 m. What is the PEg of the ball at the top of it's trajectory? What is KE at the top of it's trajectory? If the ball is caught at the same height that it was thrown, how much work did gravity do on the ball?
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