{"id":129,"date":"2014-10-19T08:38:17","date_gmt":"2014-10-19T08:38:17","guid":{"rendered":"http:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu2hwrk\/?page_id=129"},"modified":"2014-10-19T18:08:13","modified_gmt":"2014-10-19T18:08:13","slug":"electricity-energy-exercise-14","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu2hwrk\/electricity-energy-exercise-14\/","title":{"rendered":"Electricity & Energy Exercise 14"},"content":{"rendered":"

\"\"<\/a>\"\"<\/a>1.\tWhat is the difference between heat and temperature?<\/p>\n

2.\tWhat is meant by the following statement:
\n\u201cThe specific heat capacity of water is 4180 J \/ kg \u00b0C.\u201d<\/p>\n

3.\tCopy and complete this table:<\/p>\n

\"\"<\/a><\/p>\n

4.\tWhat is the heat energy required to heat 3.0 kg of water from 20 \u00b0C to 80\u00b0C?<\/p>\n

5.\tA 2.4 kg lump of brass is heated up by a Bunsen burner. When 9120 J of heat energy has been absorbed, the temperature of the brass increases by 10 \u00b0C. What is the specific heat capacity of the brass?<\/p>\n

\"\"<\/a>6.\tA pane of glass has a mass of 800 g. What is the temperature change of the glass if it is heated by 1000 J of heat energy?<\/p>\n

7.\tA block of lead is heated from 24 \u00b0C to 28\u00b0C by a heat source that gives off 6144 J of heat energy. What is the mass of the lead block?<\/p>\n

8.\tIn an experiment, a 2 kg block of copper is warmed with a 70 W electrical immersion heater. The temperature of the copper is measured every minute using a thermometer. The heat energy used is calculated by finding the power of the heater and using E = P t. The results are shown.<\/p>\n

\"\"<\/a><\/p>\n

(a)\tUsing this data, draw a line graph and use the gradient of the straight line to find the specific heat capacity of copper.<\/p>\n

(b)\tIs this experimental value for the specific heat capacity of copper larger, smaller or the same as the actual value? Explain any difference.<\/p>\n","protected":false},"excerpt":{"rendered":"

1. What is the difference between heat and temperature? 2. What is meant by the following statement: \u201cThe specific heat capacity of water is 4180 J \/ kg \u00b0C.\u201d 3. Copy and complete this table: 4. What is the heat energy required to heat 3.0 kg of water from 20 \u00b0C to 80\u00b0C? 5. A … Continue reading Electricity & Energy Exercise 14<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":2454,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-129","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu2hwrk\/wp-json\/wp\/v2\/pages\/129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu2hwrk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu2hwrk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu2hwrk\/wp-json\/wp\/v2\/users\/2454"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu2hwrk\/wp-json\/wp\/v2\/comments?post=129"}],"version-history":[{"count":3,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu2hwrk\/wp-json\/wp\/v2\/pages\/129\/revisions"}],"predecessor-version":[{"id":153,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu2hwrk\/wp-json\/wp\/v2\/pages\/129\/revisions\/153"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecphysu2hwrk\/wp-json\/wp\/v2\/media?parent=129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}