8.4.1 (V-T) (Term 1) Flashcards

Learning Objectives Describe the motion of an object by interpreting linear motion graphs (s-t, v-t, a-t) Calculate and interpret the intercepts and gradients of linear motion graphs (s-t, v-t, a-t)

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1
Q

What does a velocity-time (V-T) graph represent?

A

A velocity-time graph shows an object’s velocity as a function of time.

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2
Q

What does a horizontal line on a velocity-time graph indicate?

A

A horizontal line indicates constant velocity.

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3
Q

What does a straight sloped line on a velocity-time graph represent?

A

A straight sloped line represents constant acceleration.

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4
Q

How is acceleration calculated?

A

Acceleration is the change in velocity over time.

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5
Q

What does a positive slope on a velocity-time graph represent?

A

A positive slope represents positive acceleration.

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6
Q

What does a negative slope on a velocity-time graph represent?

A

A negative slope represents negative acceleration.

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7
Q

What do different slopes on a velocity-time (V-T) graph indicate about acceleration?

A

Positive slope = Positive acceleration
Zero slope = Zero acceleration
Negative slope = Negative acceleration

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8
Q

What does the area under the curve on a velocity-time (V-T) graph represent?

A

The area under the curve to the Y-axis represents the displacement of the object.

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9
Q

How can the area under the curve on a velocity-time graph be found?

A

The area can be found using simple geometry formulas.

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10
Q

What does the area under the velocity-time graph represent?

A

The area under the velocity-time graph gives the displacement of the object for the specified time interval.

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11
Q

What does the velocity-time graph look like for constant acceleration?

A

The velocity-time graph for constant acceleration is a straight line.

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12
Q

What does the slope of a velocity-time (V-T) graph represent?

A

The slope of a velocity-time graph represents acceleration, which relates to the acceleration formula.

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13
Q

What does a horizontal line on a velocity-time (V-T) graph indicate?

A

A horizontal line on a velocity-time graph means constant velocity.

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14
Q

What is the velocity of an object that isn’t moving?

A

If an object isn’t moving, its velocity is zero.

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15
Q

What does a positive slope on a velocity-time graph indicate?

A

A positive slope indicates the object is undergoing acceleration in the positive direction.

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16
Q

What happens if both the slope and velocity are positive?

A

If both the slope and velocity are positive, the object is speeding up.

17
Q

What happens if the slope is positive but velocity is negative?

A

If velocity is negative, the object is slowing down, even with a positive slope.

18
Q

What does the slope of a speed-time graph represent?

A

The slope of a speed-time graph represents acceleration.

19
Q

What does a constant slope on a speed-time graph indicate?

A

A constant slope indicates constant acceleration.

20
Q

What can the slope of a speed-time graph be?

A

The slope can be positive, negative, or zero.

21
Q

What does the area under the curve on an acceleration-time (A-T) graph represent?

A

The area under the curve represents the change in velocity.

22
Q

What does the “y” intercept on a velocity-time graph represent?

A

The “y” intercept equals the initial velocity.