Question

2 What does the Odometer of an automobile measure?
3 What does the path of an object looks like when it is in uniform motion?
4 A car travels 20k in 1hour and another 40k in 3 hours. What is average speed of
e car?
5 Define the term uniform motion?
6 Explain the term of scalar quantity and vector quantity?
7 Write the difference between distance and displacement?
3 Define the term - a) Speed b) Acceleration c) Motion
(Section - B)
Multiple choice questions -
1. Is malleable and ductile best describes -
(a) Solution (b) Metal (c) Compound (d) Non-Metal
2. Which of the following is not an element -
(a) graphite (b) germanium (c) silica (d) silicon
3. Tincture of iodine has antiseptic properties, sol. is made by dissolving
(a) iodine in potaasium iodine (b) iodine in acetone
(c) iodine in water
(d) iodine in alcohal
One of the following does not undergo sublimation -
1​

Answer 1

Explanation:

Measure?

Odometer, or odograph, is a device that measures the distance travelled by an automobile based on the perimeter of the wheel as the wheel rotates. The odometer gives us only the measure but doesn’t show the direction of velocity. The odometer measures the scalar quantity – the speed of the car. The device may be electronic or mechanical or a combination of the two.

Most odometers work by counting wheel rotations and assume that the distance travelled is the number of wheel rotations times the circumference, which is the standard tire diameter times pi (3.146). Some errors will be caused in the odometer, if nonstandard or severely worn or underinflated tires are used. It is common for odometers to be off by several percent