Very Short Answer Type Question
1. State the standard unit (or basic unit) of speed.
2. Which physical quantity was measured by using sundial in ancient times?
3. Name the device whose periodic motion was used for making clocks till recently.
4. What type of motion is illustrated by the bob of a simple pendulum?
5. What is a speedometer?
6. What is an odometer?
7. Under what condition the distance-time graph of an object is a horizontal line parallel to the time axis?
8. Write the formula for calculating speed.
9. What is meant by uniform motion?
Answers
Answer:
1. metre
2. length
3. pendulum
4. oscillatory
5. a piece of equipment in a vehicle that tells you how fast you are travelling
6. an instrument for measuring the distance travelled by a wheeled vehicle.
7.Considering the x-axis to be the time axis, the plot will be parallel to the time axis (a horizontal line) whenever the velocity of the studied object is zero, i.e.: when the position remains constant throughout the passing of time.
8.distance÷time
9. This type ofmotion is defined as themotion of an object in which the object travels in a straight line and its velocity remains constant along that line as it covers equal distances in equal intervals of time, irrespective of the duration of the time.
Explanation:
pls mark it as brainliest
Answer:
1. Metre per second is the standard unit of speed.
2. Length was the physical quantity which was measured by using sundial in ancient times.
3. The device whose periodic motion was used for making clocks till recently is pendulum.
4. The type of motion is illustrated by the bob of a simple pendulum is oscillatory motion.
5. An instrument in the vehicle's dashboard indicating its speed.
6. An instrument used for measuring the distance travelled by wheeled vehicle.
7. Considering that x-axis as the time axis, the plot will be parallel to the time axis whenever the velocity of studied object is zero.
8. speed= distance/time
9. This type of motion is defined as the motion of an object in which the object travels in a straight line and its velocity remains constant along that line as it covers equal distances in equal intervals of time, irrespective of the duration of the time.
Explanation:
Hope it helps you
Please mark me as Brainliest