PHYS-1600/2000PHYS-1600/2000 I1 Velocity and SpeedNEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015 DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 14 1 Today’s physics.

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 141

Today’s physics puzzler:

You’re holding a bowling ball, while sitting in a boat, which is floating in a swimming pool.When you drop the ball overboard, the water level in the pool will:1. rise a little.2. fall a little.3. stay the same.

Go ahead and answer with your clicker!

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 142

ITEM DURATION START

Introductory Concept Survey (Individual) 0:10 0:00

Simulating/Observing Uniform Circular and Linear Motion (IP) 0:15 0:10

Uniform Circular Motion Measurements Row 1 (IP, Body B) 0:15 0:25

Uniform Linear Motion Row 1 (IP, Body A, p. 3, middle) 0:15 0:40

Rows 2 and 3 0:15 0:55

Reflections on Velocity and Speed 0:20 1:10

Concept Survey Re-vote (Group) 0:10 1:30

Dismissal 1:40

AGENDA

Announcements:

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 143

1 of 3Jogger B runs along a circular track at constant speed from point 1 to point 2. Jogger A runs at constant speed along the straight line joining 1 and 2. Both joggers leave 1 simultaneously, and arrive at 2 simultaneously. A’s speed is:

1. greater than B’s.2. equal to B’s.3. less than B’s.4. incomparable to B’s without more information.

PATH OF B

PATH OF A

1 2

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 144

2 of 3Jogger B runs along a circular track at constant speed from point 1 to point 2. Jogger A runs at constant speed along the straight line joining 1 and 2. Both joggers leave 1 simultaneously, and arrive at 2 simultaneously. The magnitude of A’s average velocity is:

1. greater than that for B.2. equal to that for B.3. less than that for B.4. incomparable to that for B without more information.

PATH OF B

PATH OF A

1 2

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 145

3 of 3A bicyclist follows the bike path starting at point 1 heading east at first. The path eventually leads back around to point 1. If the path length is 5 miles, and the cyclist completes the trip in 30 min, then the magnitude of the cyclist’s average velocity would be:

1. 15 mph. (mph = miles/hour)2. 10 mph.3. 5 mph.4. 0 mph.

PATH OF CYCLIST

1

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 146

ITEM DURATION START

Introductory Concept Survey (Individual) 0:10 0:00

Simulating/Observing Uniform Circular and Linear Motion (IP) 0:15 0:10

Uniform Circular Motion Measurements Row 1 (IP, Body B) 0:15 0:25

Uniform Linear Motion Row 1 (IP, Body A, p. 3, middle) 0:15 0:40

Rows 2 and 3 0:15 0:55

Reflections on Velocity and Speed 0:20 1:10

Concept Survey Re-vote (Group) 0:10 1:30

Dismissal 1:40

AGENDA

Announcements:

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 147

PREFLIGHT #1

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 148

Etc.

PREFLIGHT #2

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 149

EXIT #1

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 1410

EXIT #2

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 1411

1 of 3Jogger B runs along a circular track at constant speed from point 1 to point 2. Jogger A runs at constant speed along the straight line joining 1 and 2. Both joggers leave 1 simultaneously, and arrive at 2 simultaneously. A’s speed is:

1. greater than B’s.2. equal to B’s.3. less than B’s.4. incomparable to B’s without more information.

PATH OF B

PATH OF A

1 2

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 1412

2 of 3Jogger B runs along a circular track at constant speed from point 1 to point 2. Jogger A runs at constant speed along the straight line joining 1 and 2. Both joggers leave 1 simultaneously, and arrive at 2 simultaneously. The magnitude of A’s average velocity is:

1. greater than that for B.2. equal to that for B.3. less than that for B.4. incomparable to that for B without more information.

PATH OF B

PATH OF A

1 2

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 1413

3 of 3A bicyclist follows the bike path starting at point 1 heading east at first. The path eventually leads back around to point 1. If the path length is 5 miles, and the cyclist completes the trip in 30 min, then the magnitude of the cyclist’s average velocity would be:

1. 15 mph. (mph = miles/hour)2. 10 mph.3. 5 mph.4. 0 mph.

PATH OF CYCLIST

1

PHYS-1600/2000 I1 Velocity and Speed NEBRASKA WESLEYAN UNIVERSITYFALL 2014-2015

DEAN SIEGLAFF NATHANIEL CUNNINGHAM of 1414

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