Temperature - practice problems - page 5 of 16
Number of problems found: 313
- Cooker efficiency testing
When testing the effectiveness of an electric cooker with data of 220 V, 1200 W, 1 kg of water at a temperature of 15 degrees Celsius was boiled for 8.5 minutes. Calculate the stove efficiency corresponding to these data - Osmium wire
A spiral of osmium wire has a resistance of 300 ohms at a temperature of 20 degrees Celsius. To what temperature was the coil heated if its resistance rose to 2940 ohms? (alpha=4*10-3 1/K) - Aluminum resistance temperature
An aluminum wire has a resistance of 4.25 ohms at 0 degrees. Determine its resistance at a temperature of 200 degrees Celsius. The temperature coefficient of the electrical resistance of aluminum is 4.4·10-3 1/K. - Platinum temperature coefficient The resistance of a platinum wire at a temperature of 20 °C is 20 Ω, and when heated to 500 °C, it increases to 59 Ω. Determine the mean temperature coefficient of platinum
- Coil resistance temperature
A copper wire coil winding has a resistance of 10 Ω at a temperature of 14 °C. The passing current by the coil heats up, and its resistance increases to 12.2 Ω. To what temperature did the coil winding heat up? α = 3.92 * 10-3 1/K. - Consider 6
Consider the following word problem: The temperature readings for 20 days at 1 AM at a local ski resort were recorded as follows: 9° 27° −4° 1° 5° 14° 6° 28° −2° 16° 30° 4° 20° 30° −5° 15° −7° 25° −1° 5° What was the average of the recorded temperatures f - At night At night the temperature is -3 Celsius and then rises by 15 Celsius during the day. What is the temperature in the daytime?
- The electric motor The electric motor winding's copper wire (alpha=4*10-3 1/K) has a resistance of 42 ohms at a temperature of 18 degrees. What is its resistance at an operating temperature of 50 degrees?
- To convert
To convert from a Celsius temperature to a Fahrenheit temperature, multiply the Celsius temperature by 9/5 and add 32. Which is the Fahrenheit temperature corresponding to - 30 degrees Celsius? - The temperature 37 The temperature was –5 °C last night. It is increased to 8 °C in the afternoon. What was the change in temperature?
- A chemist A chemist recorded the change in temperature of a cooling liquid as −25.5° over a 1.5-minute period. The temperature fell at a constant rate. What was the rate of change in temperature? Enter your answer in the box. °F per minute
- Aluminum resistance temperature
The aluminum coil line has a resistance of 4.6 Ohm at an elevated temperature of 64 °C. At what base temperature will the resistance be 2 ohms? - The temperature 36
The temperature over the course of a day was being monitored. In the morning, the temperature was −3 °F. In the middle of the day, the temperature rose to 12 °F. After dark, the temperature dropped again to −6 °F. What was the average temperature for the - Overnight change
It was 13 °C yesterday, but the temperature changed by -18.6° overnight. What is the temperature now? - Anthea
Anthea is running an experiment to examine vaccine shelf life, and she must precisely monitor the temperature. The starting temperature is −116 degrees Celsius (°C). The temperature rises by 35 degrees, then falls by 12 a degree. What is the final tempera - The temperature 35 The temperature was -8 degrees at 10:00 in the morning. If the temperature rises 3 degrees per hour, what will the temperature be at 2:00 in the afternoon?
- Scientific experiment In a scientific experiment, the temperature of a liquid was -12 degrees. If the temperature was increased by 5 degrees, what would the temperature be then?
- Two drops Between 5:00 pm to 6:00 pm, the temperature dropped 3 °C. Between 6:00 pm to 7:00 pm, the temperature dropped 4 °C. What was the total drop in temperature from 5:00 pm to 7:00 pm?
- Temp drop It is 70 °F , and the temperature is expected to drop to 85° in the next month. What is the temperature expected to be?
- Sarah 2
Sarah noticed that the temperature went from 20 degrees and dropped to -10 degrees. Sarah says that the change in temperature is -30 degrees, while her friend Kenya says that the temperature change is 10 degrees. Who is correct? Explain your reasoning
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