Podcast
Questions and Answers
What is the correct formula for calculating acceleration?
What is the correct formula for calculating acceleration?
- $t = \frac{v_2 - v_1}{z}$ (correct)
- $t = \frac{v_1 - v_2}{z}$
- $t = \frac{z}{v_2 - v_1}$
- $t = \frac{v_2 + v_1}{z}$
If an object's final velocity is less than its initial velocity, what type of acceleration is the object experiencing?
If an object's final velocity is less than its initial velocity, what type of acceleration is the object experiencing?
- Constant acceleration
- Positive acceleration
- Zero acceleration
- Negative acceleration (deceleration) (correct)
A car is moving at a constant velocity. According to the velocity-time graph, what is the acceleration of the car?
A car is moving at a constant velocity. According to the velocity-time graph, what is the acceleration of the car?
- Zero (correct)
- Positive and increasing
- Positive and constant
- Negative and constant
How is acceleration defined?
How is acceleration defined?
What does a sloping upward line on a velocity-time graph indicate?
What does a sloping upward line on a velocity-time graph indicate?
Which of the following is a way to cause acceleration?
Which of the following is a way to cause acceleration?
What are the standard units for measuring acceleration?
What are the standard units for measuring acceleration?
If the direction of positive acceleration is in the same direction as the object's movement, what will happen to the object?
If the direction of positive acceleration is in the same direction as the object's movement, what will happen to the object?
What does a sloping downward line on a velocity-time graph represent?
What does a sloping downward line on a velocity-time graph represent?
If the final velocity ($v_2$) is 20 m/s, the initial velocity ($v_1$) is 5 m/s, and the time ($z$) is 3 seconds, what is the acceleration?
If the final velocity ($v_2$) is 20 m/s, the initial velocity ($v_1$) is 5 m/s, and the time ($z$) is 3 seconds, what is the acceleration?
What does a horizontal line on a velocity-time graph signify?
What does a horizontal line on a velocity-time graph signify?
If the direction of positive acceleration is opposite to the direction of motion, what occurs?
If the direction of positive acceleration is opposite to the direction of motion, what occurs?
Which scenario demonstrates negative acceleration?
Which scenario demonstrates negative acceleration?
An object's velocity changes from 10 m/s to 5 m/s in 2 seconds. What is the object's acceleration?
An object's velocity changes from 10 m/s to 5 m/s in 2 seconds. What is the object's acceleration?
According to the image, what three ways can acceleration occur?
According to the image, what three ways can acceleration occur?
What does the variable 'z' represent in the acceleration formula?
What does the variable 'z' represent in the acceleration formula?
What will happen to an object experiencing negative acceleration?
What will happen to an object experiencing negative acceleration?
In the acceleration formula, what do $v_1$ and $v_2$ represent, respectively?
In the acceleration formula, what do $v_1$ and $v_2$ represent, respectively?
A vehicle's velocity changes from 25 m/s to 10 m/s over a period of 5 seconds. What is the vehicle's acceleration?
A vehicle's velocity changes from 25 m/s to 10 m/s over a period of 5 seconds. What is the vehicle's acceleration?
When does positive acceleration occur?
When does positive acceleration occur?
Flashcards
What is Acceleration?
What is Acceleration?
The change in an object's velocity divided by the time over which the change occurs.
What is the unit of measurement for acceleration?
What is the unit of measurement for acceleration?
Meters per second squared (m/s²).
Formula for Calculating Acceleration
Formula for Calculating Acceleration
ت = (ع٢ - ع١) / ز (acceleration = (final velocity - initial velocity) / time)
Ways to Accelerate
Ways to Accelerate
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Positive Acceleration
Positive Acceleration
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Negative Acceleration (Deceleration)
Negative Acceleration (Deceleration)
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Graphical Representation of Acceleration
Graphical Representation of Acceleration
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Upward Sloping Line on a Velocity-Time Graph
Upward Sloping Line on a Velocity-Time Graph
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Downward Sloping Line on a Velocity-Time Graph
Downward Sloping Line on a Velocity-Time Graph
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Horizontal Line on a Velocity-Time Graph
Horizontal Line on a Velocity-Time Graph
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Study Notes
- Acceleration is the change in the velocity of an object divided by time.
- Ways to accelerate include speeding up objects, slowing down objects, and changing the direction of an object's motion.
- The unit of measurement for acceleration is meters per second squared (m/s²).
Acceleration Calculation Law
- Acceleration (t) = (Final Velocity (ع٢) - Initial Velocity (ع١)) / Time (ز)
- ع٢ = final velocity
- ع١ = initial velocity
- ز = time
Types of Acceleration
- Positive acceleration: Increase in the speed of the object, where the final speed is greater than the initial speed and the positive acceleration is in the same direction as the object's motion.
- Negative acceleration (deceleration): Decrease in the speed of the object, where the final speed is less than the initial speed and the direction of positive acceleration is opposite to the direction of the object's motion.
Graphical Representation of Acceleration
- Time vs. velocity curve is used to find the acceleration.
- If the graph line is ascending, the acceleration is positive.
- If the graph line is descending, the acceleration is negative (deceleration).
- If the graph line is horizontal, the speed is constant, and the acceleration is zero.
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