acceleration
/əkˌseləˈreɪʃn/noun
उच्चारण अक्सेलरेशन
त्वरण
Core word
- 1
[U, C] physics
the rate at which the velocity of a moving object changes over time
त्वरण
- The acceleration due to gravity near the earth's surface is about 9.8 m/s².
- A body moving at a constant velocity has zero acceleration.
- Acceleration is measured in metres per second squared.
+ 2 more examples
- A force produces acceleration in an object.
- The graph shows the car's acceleration over ten seconds.
- 2
[U]
an increase in how fast something happens
तेज़ी, गति में वृद्धि
- There has been an acceleration in the rate of economic growth.
- The festival season brought an acceleration in sales across the country.
- Experts noticed an acceleration in online learning after the lockdown.
+ 2 more examples
- There was a sharp acceleration of price rises in winter.
- The acceleration of work on the bridge helped finish it on time.
Synonyms speeding up quickening increase
Opposite slowdown deceleration
- 3
[U]
the ability of a vehicle to increase its speed quickly
(गाड़ी की) रफ़्तार पकड़ने की क्षमता
- The new car has excellent acceleration.
- The bike's acceleration impressed the test riders at the track.
- Sports cars are famous for their acceleration.
+ 2 more examples
- The scooter has good acceleration for city traffic.
- Good acceleration helps when you are overtaking.
§Structures (grammar patterns) 4
acceleration (physics): uncountable, in metres per second squared
In science, acceleration is the rate at which velocity changes, measured in metres per second squared.
विज्ञान में 'acceleration' वेग के बदलने की दर है, जिसे मीटर प्रति सेकंड वर्ग में मापा जाता है।
- The acceleration of a falling object is about 9.8 m/s².
- Force equals mass times acceleration.
acceleration in / of + noun
Acceleration in or of names what is speeding up, such as growth, work or change.
'Acceleration in' या 'of' के बाद वह चीज़ आती है जिसकी गति बढ़ रही हो, जैसे growth, work या change।
- There was a sharp acceleration in economic growth.
- The government promised acceleration of the work on the highway.
(a) good / quick acceleration (of a vehicle)
For a car or bike, acceleration is its ability to pick up speed quickly and is often uncountable.
गाड़ी या बाइक के लिए 'acceleration' तेज़ी से गति पकड़ने की क्षमता है और प्रायः uncountable होता है।
- This scooter has excellent acceleration.
- The bike's acceleration impressed the riders.
acceleration vs accelerate vs accelerator
Accelerate is the verb, acceleration the noun of the action, and accelerator the pedal or device.
'Accelerate' verb है, 'acceleration' क्रिया का noun और 'accelerator' पैडल या यंत्र।
- Press the accelerator and the car will accelerate.
+Collocations 4
adjective + acceleration
rapidsuddenconstantuniformsharp
- The train had a sudden acceleration after leaving the station.
verb + acceleration
measurecalculatecauseprovideincrease
- Students calculated the acceleration of the trolley.
acceleration + of / due to
acceleration due to gravityacceleration of growthacceleration of reformsacceleration of a car
- The acceleration due to gravity is nearly 9.8 m/s².
acceleration + noun
rateforcetimetestcurve
- The car's acceleration test took ten seconds.
“More examples 5
- Radhika learnt in physics that acceleration is the change in velocity per unit time.
राधिका ने physics में पढ़ा कि acceleration प्रति इकाई समय में वेग का परिवर्तन है।
- The metro's quick acceleration surprised the passengers.
मेट्रो की तेज़ गति पकड़ने की क्षमता ने यात्रियों को चकित कर दिया।
- The country saw an acceleration in digital payments after 2016.
2016 के बाद देश में digital भुगतान में तेज़ी आई।
- A ball dropped from a roof falls with constant acceleration.
छत से गिराई गई गेंद स्थिर त्वरण से गिरती है।
- The coach demanded better acceleration from the sprinters.
प्रशिक्षक ने धावकों से तेज़ गति पकड़ने की बेहतर क्षमता की माँग की।
!Common mistakes 1
✗ The acceleration of this bike is better than the car.
✓ The acceleration of this bike is better than that of the car.
Compare like with like: the acceleration of the bike with that of the car.
समान चीज़ों की तुलना कीजिए: bike की acceleration की तुलना car की acceleration (that of the car) से होनी चाहिए।
◇Word family
≈Synonyms and antonyms
✓In the exam
General knowledge
The SI unit of acceleration is metre per second squared (m/s²).
GK के अनुसार acceleration की SI इकाई metre per second squared (m/s²) है।