Quiz 1 study set PHYS 100

Eratosthenes' calculation was in error by what percent?

5%

According to the text science is... A. The study of everything. B. Knowledge about nature. C. People's effort to understand the universe. D. Two of the above.

D. Two of the above.

The distance of 50 mm is about A. 150 ft B. 50 ft C. 10 ft D. none of the above

D. none of the above

True of False. The gram is the SI unit for mass.

False

True of false. Degree kelvin and Kelvin are the same?

False

True or false. The gram is the standard SI unit for weight.

False

True or false? Science relies little on measurement.

False

true of false. A centimeter is larger than a meter.

False

A kilogram is a measure of an object's

Mass

According to the text how is scientific method performed?

Problem, hypothesis, predict, experiment, rule link.

The statement, "There are regions beneath Earth's crust that will always be beyond the reach of scientific investigation" is a

Speculation

Eratosthenes used the height of a pillar to help him calculate what?

The circumference of the sun.

Which of the following is a scientific statement?

The moon is made of green cheese

The Mars Orbiter spaceship crashed into mars because

The scientists confused pounds with newtons.

True or false. A kilometer is larger than a meter.

True

Recalling that 1609 m=1 mi, 100 mi/hr is

200 m/s

Recalling that 1609m=1 mile, 12m/s is about

24 mi/hr

The distance between planet Jupiter to the sun is 7.8x10^11 m. The speed of light is 3x10^8 m/s. How long does it take for light to travel from the sun to Jupiter?

4.3x10^1 min

If you poke a small hole in a piece of cardboard and hold it in bright sunlight youll cast a pinhole image of the sun on the ground below. If the cardboard is 108cm from the ground then the pinhole image is 1cm. The distance from the cardboard to the sun is 150,000,000km. Using similar triangles what is the diameter of the sun?

1,400,000 km

A sphere has a volume of 8000m^3 what is the sphere's radius?

12.4m

Science, art, and religion do not contradict one another because

All three have different domains.

To calculate the circumference of the earth Eratothenes relied on what? A. Similar cubes B. Similar spheres C. Neither of the above.

C. Neither of the above.

The British unit of length closest to a meter is a

Yard

In the car tire size p180/70R14 has units of

mm