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CHAPTER 2 JEOPARDY

What is the unit we use for speed? m/s What is the term for speed and direction?

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Page 1: What is the unit we use for speed?  m/s  What is the term for speed and direction?

CHAPTER 2 JEOPARDY

Page 2: What is the unit we use for speed?  m/s  What is the term for speed and direction?

What is the unit we use for speed?

Page 3: What is the unit we use for speed?  m/s  What is the term for speed and direction?

m/s

Page 4: What is the unit we use for speed?  m/s  What is the term for speed and direction?

What is the term for speed and direction?

Page 5: What is the unit we use for speed?  m/s  What is the term for speed and direction?

Velocity

Page 6: What is the unit we use for speed?  m/s  What is the term for speed and direction?

Acceleration is a change in what over time?

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velocity

Page 8: What is the unit we use for speed?  m/s  What is the term for speed and direction?

Give an example of when a car can have constant speed but not constant velocity.

Page 9: What is the unit we use for speed?  m/s  What is the term for speed and direction?

When it is changing direction

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What would be your speed if you ran 20 m down the hall in 4 s?

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5 m/s

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What causes objects to speed up as they fall?

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gravity

Page 14: What is the unit we use for speed?  m/s  What is the term for speed and direction?

What is the value of gravity that we will use in this class?

Page 15: What is the unit we use for speed?  m/s  What is the term for speed and direction?

10 m/s²

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Why does a crumpled up piece of paper fall faster than a flat piece of paper?

Page 17: What is the unit we use for speed?  m/s  What is the term for speed and direction?

It has less air resistance

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If the speed of a car is 4 m/s and it travels for 8 s, what distance has it moved?

Page 19: What is the unit we use for speed?  m/s  What is the term for speed and direction?

32 m

Page 20: What is the unit we use for speed?  m/s  What is the term for speed and direction?

If an object has negative acceleration, what is happening to it?

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It is slowing down

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How much time does an object traveling at 10 m/s need to travel 80 m?

Page 23: What is the unit we use for speed?  m/s  What is the term for speed and direction?

8 s

Page 24: What is the unit we use for speed?  m/s  What is the term for speed and direction?

What equation do we use to find the distance a falling object has traveled?

Page 25: What is the unit we use for speed?  m/s  What is the term for speed and direction?

d = ½ gt²

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What is your velocity if you are sitting still?

Page 27: What is the unit we use for speed?  m/s  What is the term for speed and direction?

zero

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What does it mean to say that speed is relative?

Page 29: What is the unit we use for speed?  m/s  What is the term for speed and direction?

The speed is relative to where we are. We might be sitting still at our desks but we are in motion on the Earth therefore, our speed of zero is relative to the motion of the Earth.

Page 30: What is the unit we use for speed?  m/s  What is the term for speed and direction?

What happens to the speed of a falling object? Does it increase, decrease, or remain constant?

Page 31: What is the unit we use for speed?  m/s  What is the term for speed and direction?

It increases

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As an object falls its speed increases. How does the amount that the speed increases change as it falls? Does it increase, decrease, or remain the same?

Page 33: What is the unit we use for speed?  m/s  What is the term for speed and direction?

It remains the same. The speed increases by 10 m/s every second.

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A ball is thrown straight up. What is its speed at the top of its path?

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zero

Page 36: What is the unit we use for speed?  m/s  What is the term for speed and direction?

A car starts from rest. After 3 s its velocity is 9 m/s. What is the car’s acceleration?

Page 37: What is the unit we use for speed?  m/s  What is the term for speed and direction?

3 m/s²

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What does each letter stand for in the equation

a = (vf – vi)/t

Page 39: What is the unit we use for speed?  m/s  What is the term for speed and direction?

a = acceleration vf = final velocity vi = initial velocity t = time

Page 40: What is the unit we use for speed?  m/s  What is the term for speed and direction?

Do not solve the following problem. Pick out the final velocity: A car moving at 6 m/s comes to a stop in 4.3 s. What is the car’s acceleration?

Page 41: What is the unit we use for speed?  m/s  What is the term for speed and direction?

vf = 0

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Is 4 m/s south a speed or velocity?

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velocity

Page 44: What is the unit we use for speed?  m/s  What is the term for speed and direction?

What unit is distance measured in?

Page 45: What is the unit we use for speed?  m/s  What is the term for speed and direction?

m

Page 46: What is the unit we use for speed?  m/s  What is the term for speed and direction?

A monkey drops from a tree. After 3s how fast will it be moving?

Page 47: What is the unit we use for speed?  m/s  What is the term for speed and direction?

30 m/s

Page 48: What is the unit we use for speed?  m/s  What is the term for speed and direction?

What is the acceleration of a car that travels in a straight line at a constant speed of 100 km/h?

Page 49: What is the unit we use for speed?  m/s  What is the term for speed and direction?

zero

Page 50: What is the unit we use for speed?  m/s  What is the term for speed and direction?

What day is your test?

Page 51: What is the unit we use for speed?  m/s  What is the term for speed and direction?

Thursday

Page 52: What is the unit we use for speed?  m/s  What is the term for speed and direction?

Name one lab we have done in here

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Bowling ball lab Speed lab outside Water bottle rocket lab

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Does air resistance increase or decrease the acceleration of a falling object?

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decrease

Page 56: What is the unit we use for speed?  m/s  What is the term for speed and direction?

How is instantaneous speed different from average speed?

Page 57: What is the unit we use for speed?  m/s  What is the term for speed and direction?

Instantaneous speed is how fast something is moving at one instant. Average speed accounts for all the different speeds an object may travel.

Page 58: What is the unit we use for speed?  m/s  What is the term for speed and direction?

What is the acceleration of a ball that is thrown up at the top of its path?

Page 59: What is the unit we use for speed?  m/s  What is the term for speed and direction?

10 m/s²

Page 60: What is the unit we use for speed?  m/s  What is the term for speed and direction?

A child drops a toy off a balcony. If it takes 3 s for the toy to hit the ground, how tall is the balcony?

Page 61: What is the unit we use for speed?  m/s  What is the term for speed and direction?

45 m

Page 62: What is the unit we use for speed?  m/s  What is the term for speed and direction?

By how much does a falling objects speed change each second?

Page 63: What is the unit we use for speed?  m/s  What is the term for speed and direction?

10 m/s each second

Page 64: What is the unit we use for speed?  m/s  What is the term for speed and direction?

If you throw an object up it will slow down on the way up. By how much does its speed slow down each second on the way up?

Page 65: What is the unit we use for speed?  m/s  What is the term for speed and direction?

10 m/s each second

Page 66: What is the unit we use for speed?  m/s  What is the term for speed and direction?

What equation do we use if an object is moving at a constant velocity?

Page 67: What is the unit we use for speed?  m/s  What is the term for speed and direction?

S = d/t

Page 68: What is the unit we use for speed?  m/s  What is the term for speed and direction?

If you drop a penny and a feather at the same time from the same height in a vacuum, which will hit the ground first?

Page 69: What is the unit we use for speed?  m/s  What is the term for speed and direction?

They will hit at the same time.

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A runner runs at a constant speed of 5 m/s. After 3 minutes how far will the runner have traveled? (be careful about the minutes)

Page 71: What is the unit we use for speed?  m/s  What is the term for speed and direction?

900 m

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A construction worker drops a hammer off of a building that is 45 m tall. How much time will it take the hammer to hit the ground?

Page 73: What is the unit we use for speed?  m/s  What is the term for speed and direction?

3 s

Page 74: What is the unit we use for speed?  m/s  What is the term for speed and direction?

If an object falls freely for 5 seconds, what is its velocity?

Page 75: What is the unit we use for speed?  m/s  What is the term for speed and direction?

50 m/s

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Which of the following is not a velocity? 45 m/s up 17 mph right 4 km/h 66 m/s southeast

Page 77: What is the unit we use for speed?  m/s  What is the term for speed and direction?

4 km/h

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Is the value of gravity different for different objects?

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No, it is always 10 m/s²

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The End