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Acceleration Reading

Wallace Mason 4 questions 1,132 views

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  1. 1Imagine the thrill of riding on a roller coaster like this one! The coaster slowly crawls to the top of the track and then flies down the other side. It also zooms around twists and turns at breakneck speeds. These [blank_start]changes[blank_end] in [blank_start]speed[blank_end] and [blank_start]direction[blank_end] are what make a roller coaster ride so exciting. Changes in [blank_start]speed[blank_end] or [blank_start]direction[blank_end] are called [blank_start]acceleration[blank_end].Image for question 1
    1. Achanges
    2. Bspeed
    3. Cdirection
    4. Dspeed
    5. Edirection
    6. Facceleration
  2. 2DEFINING ACCELERATION
    [blank_start]Acceleration[blank_end] is a measure of the change in [blank_start]velocity[blank_end] of a moving object. It measures the rate at which [blank_start]velocity[blank_end] [blank_start]changes[blank_end]. [blank_start]Velocity[blank_end], in turn, is a measure of the [blank_start]speed[blank_end] and [blank_start]direction[blank_end] of motion, so a change in velocity may reflect a change in [blank_start]speed[blank_end], a change in [blank_start]direction[blank_end], or [blank_start]both[blank_end]. Both velocity and acceleration are [blank_start]vectors[blank_end]. A vector is any measurement that has both [blank_start]size[blank_end] and [blank_start]direction.[blank_end] People commonly think of acceleration as in [blank_start]increase[blank_end] in speed, but a [blank_start]decrease[blank_end] in speed is also acceleration. In this case, acceleration is [blank_start]negative[blank_end] and called [blank_start]deceleration[blank_end]. A change in [blank_start]direction[blank_end] without a change in speed is acceleration as well.
    1. AAcceleration
    2. Bvelocity
    3. Cvelocity
    4. Dchanges
    5. EVelocity
    6. Fspeed
    7. Gdirection
    8. Hspeed
    9. Idirection
    10. Jboth
    11. Kvectors
    12. Lsize
    13. Mdirection.
    14. Nincrease
    15. Odecrease
    16. Pnegative
    17. Qdeceleration
    18. Rdirection
  3. 3Q: Describe how velocity is changing in each of the motions you identified from the Figure 1.

    A: You should describe how both [blank_start]direction[blank_end] and [blank_start]speed[blank_end] are changing. For example, the boy on the carousel is moving [blank_start]up[blank_end] and [blank_start]down[blank_end] and around in a [blank_start]circle[blank_end], so his [blank_start]direction[blank_end] is constantly changing, but his speed changes only at the [blank_start]beginnin[blank_end]g and [blank_start]end[blank_end] of the ride. The skydiver is falling straight down toward the ground so her direction [blank_start]isn’t[blank_end] changing, but her speed keeps [blank_start]increasing[blank_end] as she falls until she opens her parachute.
    1. Adirection
    2. Bspeed
    3. Cup
    4. Ddown
    5. Ecircle
    6. Fdirection
    7. Gbeginnin
    8. Hend
    9. Iisn't
    10. Jincreasing
  4. 4FEELING ACCELERATION

    If you are accelerating, you may be able to feel the change in [blank_start]velocity[blank_end]. This is true whether the change is in [blank_start]speed[blank_end], [blank_start]direction[blank_end], or [blank_start]both[blank_end]. You often feel acceleration when you ride in a car. As the car [blank_start]speeds[blank_end] up, you feel as though you are being [blank_start]pressed[blank_end] against the seat. When the car [blank_start]slows[blank_end] down, you feel like you are being pushed [blank_start]forward[blank_end], especially if the change in speed is [blank_start]sudden[blank_end]. If the car changes [blank_start]direction[blank_end] and turns [blank_start]right[blank_end], you feel as though you are being pushed to the [blank_start]left[blank_end]. With a left turn, you feel a push to the right. The next time you ride in a car, notice how it feels as the car [blank_start]accelerates[blank_end] in each of these ways.
    1. Avelocity
    2. Bspeed
    3. Cdirection
    4. Dboth
    5. Espeeds
    6. Fpressed
    7. Gslows
    8. Hforward
    9. Isudden
    10. Jdirection
    11. Kright
    12. Lleft
    13. Maccelerates

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Description
Quiz on Acceleration Reading, created by Wallace Mason on 10/02/2019.
Language
English
Views
1,132
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