Review!

Review! : 

Review!

Do Now : 

Do Now If you had to take a quiz today on projectile motion, what do you think you would get? Why?

Do Now : 

Do Now If you had to take a quiz today on projectile motion, what do you think you would get? Why?

Do Now : 

Do Now If you had to take a quiz today on projectile motion, what do you think you would get? Why? Brien Spier

Objectives and Announcements : 

Objectives and Announcements SWBAT… Tell the format and expectations for this week’s quiz. Answer conceptual questions in projectile motion and free-fall Complete Projectile motion problems Announcements: QUIZ! 10 MCs and 2 Problems (25 points) Physics A – Thursday Physics B – Friday Physics C - Friday

Docket : 

Docket Lab Discussion Do Now Practice MCs Practice Problems HW

Docket : 

Docket Lab Discussion Do Now Practice MCs Practice Problems HW

Let’s Talk Lab : 

Let’s Talk Lab According to what we learned in class, what is the best angle to kick the football at if you want it to go the maximum horizontal distance for a given velocity? 45 degrees! PHET

Let’s Talk Lab : 

Let’s Talk Lab Which of your teammates kicked the football closest to that angle? Did they also kick the ball the farthest? If so, will the person who kicked it closest to the best angle ALWAYS kick it the farthest? If not, how is this possible? 45 degrees is the best angle, but it doesn’t necessarily mean the object will go the farthest! An object thrown at 1 m/s at 45 degrees will not go as far as an object thrown at 10 m/s at 35 degrees. PHET

Let’s Talk Lab : 

Let’s Talk Lab What are some possible sources of error in this experiment? How accurate do you think your results are?

Docket : 

Docket Lab Discussion Do Now Practice MCs Practice Problems HW

How well do you think you would do on a quiz today? : 

How well do you think you would do on a quiz today? A B C D F

Docket : 

Docket Lab Discussion Do Now Practice MCs Practice Problems HW

A baseball is thrown straight up in the air (no horizontal speed). What is the ball’s acceleration at its peak? : 

A baseball is thrown straight up in the air (no horizontal speed). What is the ball’s acceleration at its peak? 0 m/s 0 m/s2 9.8 m/s2 -9.8 m/s2

The horizontal piece (x-component) of an object’s velocity in a projectile motion problem… : 

The horizontal piece (x-component) of an object’s velocity in a projectile motion problem… Does not change Increases at 9.8 m/s2 downwards Is 0 m/s.

If I toss a ball up in the air at 10 m/s, while standing at the edge of a cliff, what will the ball’s speed (ignore negatives) be when it is about to hit the ground below the cliff? : 

If I toss a ball up in the air at 10 m/s, while standing at the edge of a cliff, what will the ball’s speed (ignore negatives) be when it is about to hit the ground below the cliff? 10 m/s More than 10 m/s Less than 10 m/s

At what angle should an object be thrown if you want it to land as far away from you as possible on flat ground? : 

At what angle should an object be thrown if you want it to land as far away from you as possible on flat ground? 0 degrees 30 degrees 45 degrees 60 degrees 90 degrees

What is the vertical (y) component of the velocity vector given below? : 

What is the vertical (y) component of the velocity vector given below?

An object is thrown to the right perfectly horizontally from the top of a 20 meter building at 6 m/s. The object lands 2.02 seconds later. What was the object’s initial velocity in the vertical dimension (y dimension)? : 

An object is thrown to the right perfectly horizontally from the top of a 20 meter building at 6 m/s. The object lands 2.02 seconds later. What was the object’s initial velocity in the vertical dimension (y dimension)? 2.02 m/s 6 m/s 0 m/s -9.8 m/s 20 m/s Picture X Problem Y Problem ? ? m vi = 6 m/s 20 m t=2.02s

Docket : 

Docket Do Now Practice MCs Practice Problems HW

Problems : 

Problems 2 Problems 10 Minutes Each When done you can work on the HW (review problems) being passed out now. No Talking Please MP3’s are a go.

Mr. Kadin pushes a student off of the roof of the school perfectly horizontally to the right at 4 m/s. If the student splatters 12.6 meters from the school, how tall is the school? : 

Mr. Kadin pushes a student off of the roof of the school perfectly horizontally to the right at 4 m/s. If the student splatters 12.6 meters from the school, how tall is the school? Between 0 and 10 meters Between 10 and 20 meters Between 20 and 30 meters Between 30 and 40 meters Between 40 and 50 meters

A hater throws a peanut from his seat onto a baseball field. If the hater threw the peanut at 13 m/s at 39 degrees above the horizontal, and the peanut landed on a player’s head 30 meters away, how high is the seat? : 

A hater throws a peanut from his seat onto a baseball field. If the hater threw the peanut at 13 m/s at 39 degrees above the horizontal, and the peanut landed on a player’s head 30 meters away, how high is the seat? 30 m 13 m/s ? m 0-10 meters 10-20 meters 20-30 meters 30-40 meters 40-50 meters