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Unit 5: Forces
5.6 Forces and Motion
5.6.3 Acceleration
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What is acceleration defined as?
Rate of change of velocity
Acceleration is a vector quantity, meaning it has both magnitude and
direction
Acceleration can only be positive.
False
What does positive acceleration indicate?
Increasing velocity
Acceleration is the rate of change of
velocity
Velocity
describes both the speed and direction of motion.
Match the property with the correct quantity:
Definition ↔️ Rate of change of velocity
Quantity ↔️ Vector (magnitude and direction)
Sign ↔️ Can be positive or negative
What is the definition of acceleration?
Rate of change of velocity
Acceleration is a scalar quantity.
False
Acceleration can be positive, indicating increasing
velocity
What is the formula for acceleration?
a = \frac{v - u}{t}</latex>
Acceleration is a vector quantity, meaning it has both magnitude and
direction
Negative acceleration indicates increasing velocity.
False
What are the two properties of a vector quantity?
Magnitude and direction
Steps to use the acceleration formula to solve a problem:
1️⃣ Identify the given values for v, u, and t
2️⃣ Substitute the values into the formula
3️⃣ Calculate the acceleration
4️⃣ Include the correct units (m/s²)
What is the unit of acceleration?
m/s²
Uniform acceleration occurs when the velocity changes at a
constant
rate.
What happens to acceleration in non-uniform acceleration?
It fluctuates
Match the type of acceleration with its characteristic:
Uniform acceleration ↔️ Constant rate of change in velocity
Non-uniform acceleration ↔️ Variable rate of change in velocity
What is the formula for calculating acceleration?
a
=
a =
a
=
v
−
u
t
\frac{v - u}{t}
t
v
−
u
A car accelerating from 10 m/s to 25 m/s in 5 seconds has an acceleration of 3
m/s²
.
The formula to calculate acceleration is a = (v - u) / t, where 'a' represents
acceleration
The unit for acceleration is
m/s²
.
The variable 'v' in the acceleration formula represents
final
velocity.
A car accelerating from 10 m/s to 25 m/s in 5 seconds has an acceleration of 3
m/s²
.
What is the acceleration of a train that slows down from 30 m/s to 12 m/s in 9 seconds?
-2 m/s²
Acceleration is a
vector
quantity, meaning it has both magnitude and direction.
Negative acceleration indicates decreasing
velocity
.
What is the definition of acceleration?
Rate of change of velocity
The formula for acceleration is a = (v - u) / t, where 't' represents
time
taken.
The symbol 'a' in the acceleration formula represents acceleration in
m/s²
.
Match the symbol with its representation and unit:
a ↔️ Acceleration, m/s²
v ↔️ Final velocity, m/s
u ↔️ Initial velocity, m/s
t ↔️ Time taken, s
Order the following characteristics of uniform and non-uniform acceleration:
1️⃣ Uniform acceleration: Velocity changes at a constant rate
2️⃣ Uniform acceleration: Acceleration remains the same
3️⃣ Non-uniform acceleration: Velocity changes at a variable rate
4️⃣ Non-uniform acceleration: Acceleration fluctuates with time
In uniform acceleration, the rate of change in velocity is
constant
.
What is the unit for acceleration?
m/s²
To calculate acceleration using the formula a = (v - u) / t, you must first identify the given values for
v
, u, and t.
The symbol 'a' in the acceleration formula represents acceleration in
m/s²
.
What does the symbol 'u' represent in the formula for acceleration?
Initial velocity
The unit for time taken in the acceleration formula is
seconds
Steps to use the acceleration formula
1️⃣ Identify the given values for v, u, and t
2️⃣ Substitute these values into the formula
3️⃣ Calculate the acceleration a
4️⃣ Include the correct units (m/s²)
See all 51 cards
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