Introduction to Physics Chapter 1

What is the base SI unit for measuring electric current?

• Ampere (A)

• Meter (m)

• Kilogram (kg)

• Liter (L)

Which of the following is the correct SI unit of temperature?

• Fahrenheit

• Celsius

• Kelvin

• Rankine

The science of Physics is concerned with which of the following matters?

• applying physics principles

• describing the physical world

• making predictions about a broad range of phenomena

• all of these

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What is the SI base unit for length?

• meter

• kilogram

• kilometer

• second

What quantity does the kilogram measure?

• time

• distance

• force

• mass

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In scientific notation, 674.3 mm equals

• 0.6743 x 10^-3 mm

• 6.743 x 10³ km

• 6.743 x 10² mm

• 6.743 x 10² m

Based on the data from Table 1, which of the following statements is correct?

• the temperature increased equally during each time period for both substances

• there is no relationship between heating time and temperature for either substance

• as time increased, the temperature increased for both substances

• none of the above

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The SI base unit for time is

• 1 day

• 1 hour

• 1 minute

• 1 second

How does a scientist reduce the frequency of human error and minimize a lack of accuracy?

• take repeated measurements

• use the same method of measurement

• maintain instruments in good working order

• all of these

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Five darts strike near the center of a target. The dart thrower is

• accurate

• precise

• both accurate and precise

• neither accurate nor precise