Question

Worksheet 1 A. Fill in the blanks 1. 191 chances nuly the physical properties of the nuhetences changes 2. Melting of ice to * change 3. Burning of it candle las Changes are usually irreversible 3. Cooking changes properties of food, 6. Peactions in whicks hout is absorbed are called reactions 7. Reddish brown layer on the surface of iron djects is called B. State whether the following are true or false, 1. Bakıng of cake is a physical change. 2. No heat and light is exoled during a chemical teaction. %. Ripening of fruit is an irreversible change. 4. Heat is releaped during exothermic reactions, 1 Oxidation takes place when we cut fruits and vegetables, 6. Rusting takes place io presence of moisture C. Answer in one word. 1 Coating iron objects with mine. 2 Reaction takes place when we cut fruita 3. Bubutanrs, formed during a chemicel reaction, 4. Changes which can be reversed. D. Match the following: 1 Rinting, a. Endotherme resetion 2. Melting of wa b. Chemical change 3. Release of host e, Exothermia muutum 4. absorption of best d. Physical change E. Anver the following questions, 1. Write two chemical changes ahich are troversible?​

Answer 1

Answer:

Draw velocity-time graph of a freely falling body