Chemistry Semester 01 Final (Part One)

Why is it important to tie back long hair during lab activities?

• To maintain personal hygiene

• To avoid distractions

• To prevent accidents with flames or chemicals

• To comply with dress code

Which tool would you use to measure the mass of an object?

• A) A ruler

• B) An electronic balance

• C) A thermometer

• D) A graduated cylinder

What is the first step in the scientific method?

• Conduct an experiment

• Form a hypothesis

• Make an observation

• Analyze results

What step in the engineering design process involves identifying weak points in a prototype?

• Brainstorming

• Testing and evaluation

• Redesign

• Final presentation

Tags

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Chemical energy would be classified as what type of energy?

• Kinetic energy

• Potential energy

• Thermal energy

• Nuclear energy

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What type of energy does a moving car have?

• Kinetic energy

• Potential energy

• Thermal energy

• Chemical energy

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Which of the following is an example of thermal energy?

• A battery

• A hot cup of coffee

• A spinning wheel

• A compressed spring

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A substance with a mass of 500g and a specific heat capacity of 2.0 J/g°C absorbs 4,000 J of heat energy. What is the temperature change (ΔT) of the substance?

• 2°C

• 4°C

• 8°C

• 10°C

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

How much heat is needed to raise 200 g of water by 10°C?

• 8,360 J

• 4,180 J

• 20,900 J

• 2,090 J

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What happens to a low-mass star after it exhausts its fuel?

• It becomes a red giant and then a white dwarf

• It explodes into a supernova

• It becomes a neutron star

• It collapses into a black hole

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