Test- Force Flashcards

1
Q
  1. Baseball players swings his bat but hits a fly that was hovering over home plate. Acceleration of the fly compared to what the acceleration of the ball would have been with the same force applied to it would be…
A

larger

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2
Q
  1. What is the weight of the box in the picture to the right?
A

25 kg

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3
Q
  1. Consider a watermelon that starts from rest and is dropped straight down from a tall building. Air resistance can be ignored. Which statement about the watermelons motion is FALSE?
A

The watermelon falls with a constant velocity

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4
Q
  1. An object that is falling freely has a constant what?
A

Acceleration

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5
Q
  1. In the picture to the right, if the card were quickly pulled off the cup like the arrow suggests, what property would explain why the coin falls into the cup rather than moving with the card?
A

inertia

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6
Q
  1. an object in motion with no unbalanced forces acting on it will…
A

Continue to move in its path at a constant speed

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7
Q
  1. Tendency of an object to resist changes in motion?
A

inertia

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8
Q
  1. The attraction any two objects have on one another?
A

gravity

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9
Q
  1. why does someone not wearing a seatbelt in a car fly forward when the car stops suddenly? Make sure to include which law explains this.
A

first law because objects in motion resist a change in motion, due to inertia

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