Question

which are potential sources of error in the experiment? check all that apply. estimating temperature to the nearest tenth of a degree estimating the mass of the sample to the nearest tenth of a gram estimating the thickness of the foam cups the position of the cups of sand and water under the heat lamp the brand of light bulb used for the heat lamp the air temperature outside the lab

Explanation:

• Estimating temperature to the nearest tenth of a degree: This is a measurement uncertainty. Temperature sensors may have limitations, and human estimation can introduce error.
• Estimating the mass of the sample to the nearest tenth of a gram: Mass measurement uncertainty. Scales have precision limits, and estimation affects accuracy.
• Estimating the thickness of the foam cups: Foam cup thickness affects heat insulation. Inaccurate estimation changes heat transfer dynamics.
• The position of the cups of sand and water under the heat lamp: Uneven heating if positions vary. Affects temperature change measurements.
• The brand of light bulb used for the heat lamp: Different brands may have slightly different heat output characteristics.
• The air temperature outside the lab: If lab is not well - insulated, outside air temperature can influence internal conditions (but less likely if lab is a controlled environment).

Answer:

estimating temperature to the nearest tenth of a degree, estimating the mass of the sample to the nearest tenth of a gram, estimating the thickness of the foam cups, the position of the cups of sand and water under the heat lamp, the brand of light bulb used for the heat lamp.