Question

A. Choose the correct answer. 1. Mercury is used in thermometers because 1. Which is measure 04 a. it is shiny 2. Definer 2. A clinical thermometer can measures temperature of boiling water, 3. One millimetre is one-thousandth metre. 4. Metre is a convenient unit to measure distance between two planets. 5. The age of a person is minutes. 3. State the thermo C. measured 4. What person 5. Which of (a) (c) a (e) a shirt? area G. Answer a. m chemicals 1. Wha and C. m 2. melting of D. Match the following: 1. The lower fixed a. cm? point is the temperature of 2. A provision to prevent b. mass of mercury from falling back 3. High degree of c. accuracy is required pure ice for measuring 4. Unit suitable for measuring the area of a cell phone 5. The length of e. kink a curve can be measured by using a Wha usir thes d. thread 3. Wr wh a. b. it expands with rise in temperature it contracts on cooling d. all of the above 2. The surface occupied by an object is called its a. volume b. c. capacity d. none of these 3. A length of 1 cm is equal to 1 10 m b. 10 1 d. 100 m 100 4. Which of the following is a unit of area? a. m2 b. m c. mL d. km 5. Which expression is not true? 1 km = 10 nm b. 1m = 10 dm 10 mm = 1 cm d. 1 hm = 10 m B. Fill in the blanks. 1. A quantity that can be measured is called quantity 2. A thermometer is used to measure the temperature of the human body. 3. The thermometer that can measure the highest and lowest temperature over a period of time is called 4. The most commonly used unit of length is 5. The area of a regular shape can be measured by using a C. State whether the following are true or false. 1. The suitable unit for measuring an area of a district is m? c. 1. W 2. A A E. Look at the picture below and answer the following questions. a 7 cm 5 cm 3 cm Ge mc 3 cm 4 cm M: sta 3 cm 3 cm m a. 4 cm a 1. What will be the area of the given object? 2. If a hole of radius 1 cm is punched at the centre of the object, what will be the new area of the object? 28​

Answer 1

Answer:

your questions are not clear

Explanation:

or understood

Answer 2

Answer:

1. is has high coefficients of expansion