Physics Midterm Review

Front

What are significant figures?

Back

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion.

Front

How many significant figures does the number 0.002040 have?

Back

4 significant figures.

Front

What is uniformly accelerated motion?

Back

Uniformly accelerated motion occurs when an object moves in a straight line with a constant acceleration.

Front

Which portion of a graph typically shows uniformly accelerated motion?

Back

The portion of the graph where the slope is constant.

Front

What is the formula to calculate velocity?

Back

Velocity = Displacement / Time.

Front

If the Road Runner drops from a ledge and takes 0.50 seconds to hit the ground, what is his velocity?

Back

4.9 m/s.

Front

What is displacement?

Back

Displacement is the shortest distance from the initial to the final position of an object, along with the direction.

Front

In a vector, what does the vertical component represent?

Back

The vertical component represents the displacement in the vertical direction, often indicated as North or South.

Front

How do you express a number in scientific notation?

Back

To express a number in scientific notation, write it as a product of a number between 1 and 10 and a power of 10.

Front

Convert 0.000457 into scientific notation.

Back

4.57 x 10^-4.