Speed, Velocity, Acceleration
Does the statement describe speed, velocity, or acceleration? Choose the correct answer.
1.The motorbike slows down at the stop sign
2.A snail can crawl 2 meters in 2 hours
3.A car speeds along a curvy road.
4.A train increased its speed as it left the station,
5.A boat travels north towards China at 10m/s.
6.The divers swim 1km in 1hr.
7. The birds fly south at 15m/s to find warm weather.
8.Police men travel in all directions across the city to stop coronavirus
9.It takes your Dad 30 minutes to travel 8 km.
10. You lie down to rest and don't move for one hour.
Answers
Answer:
1) Speed.
2) Speed
3) Acceleration
4) Acceleration
5) Velocity
6) Speed
7) Velocity
8) Speed
9) Speed
10) Speed
Explanation:
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Answer:
1.The motorbike slows down at the stop sign: Acceleration
2.A snail can crawl 2 meters in 2 hours: Velocity
3.A car speeds along a curvy road.: Acceleration
4.A train increased its speed as it left the station: Acceleration
5.A boat travels north towards China at 10m/s.: Velocity
6.The divers swim 1km in 1hr.: Speed.
7. The birds fly south at 15m/s to find warm weather.: Velocity
8.Police men travel in all directions across the city to stop coronavirus: Speed
9.It takes your Dad 30 minutes to travel 8 km: Speed
10. You lie down to rest and don't move for one hour: Zero (none can be applied)
Explanation:
- SPEED: Speed is the rate of change of any object in any direction. In other words speed is a quantity which helps to judge how fast an object is moving in any direction. It is measured by the ratio of distance covered and time taken to cover that distance. i.e., s=
.
- VELOCITY: Velocity is the rate at which an object changes it's position. In other words, velocity is the distance travelled by an object per unit of time. The SI unit of velocity is meter/second (m/s).
- ACCELERATION: Acceleration is the rate at which the velocity changes with respect to time. The SI unit is