2024Physics Midterm Review Part A

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time, measured in meters per second squared (m/s²).

Front

How do you calculate acceleration?

Back

Acceleration can be calculated using the formula: a = (final velocity - initial velocity) / time.

Front

What is the difference between average speed and average velocity?

Back

Average speed is the total distance traveled divided by the total time taken, while average velocity is the total displacement divided by the total time taken.

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form, using powers of ten.

Front

How do you convert a number to scientific notation?

Back

To convert a number to scientific notation, move the decimal point to create a number between 1 and 10, then multiply by 10 raised to the number of places the decimal was moved.

Front

What is the formula for calculating change in velocity?

Back

Change in velocity (Δv) can be calculated using the formula: Δv = acceleration × time.

Front

What is the significance of a zero average velocity?

Back

A zero average velocity indicates that an object has returned to its starting point, regardless of the distance traveled.

Front

What is the unit of measurement for velocity?

Back

The unit of measurement for velocity is meters per second (m/s).

Front

What does it mean for an object to accelerate uniformly?

Back

Uniform acceleration means that the object's acceleration is constant over time.

Front

How do you express 450,000 in scientific notation?

Back

450,000 can be expressed as 4.5 x 10^5 in scientific notation.