General Physics 1 (Pre-Test)

Front

Which is a correct expression of scientific notation? Options: 7.2 x 10 m, 0.5 x10^-2 m, 1.5 x 10^-5 m, 100^6m

Back

1.5 x 10^-5 m

Answer explanation

Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10.

Front

If a book weighs 5000 grams, how many kilograms does it weigh?

Back

5kg

Front

Measured values: 11.2 mol/kg, 8.90 mol/kg, 5 mol/kg; Exact value: 13.3 mol/kg. Which of the following best describes these measured values with respect to the exact value?

Back

Neither precise nor accurate

Front

Which of the following data is NOT a vector quantity? 5 km, west, 15 m, north, 35 m, 20 km, south

Back

35 m

Front

Consider two vectors both directed to the east and with a magnitude of 10 m. What will be the resultant vector when they are added?

Back

20 m, east

Front

A vector is directed towards the north with a very large magnitude. How will you describe the x-component?

Back

zero

Front

A car accelerates to a velocity of 60 km/hr in 10 minutes. What is the acceleration of the vehicle?

Back

360 km/hr^2

Front

A toy is dropped from a height of 40 m. How long will it take to reach the ground?

Back

2.85 s

Front

Leonard dropped a coin into a well, and it took 2.00 seconds to reach the ground. What is the total depth of the well?

Back

19.6 m

Front

A ball is thrown in the air at an angle of 40.00. If the maximum height reaches 10.00 m, what must be its initial speed?

Back

21.78 m/s