2023 Physics S1 review ch 1 & 2

Front

How many significant figures are in the number 0.00001 g?

Back

1 significant figure.

Front

What is an independent variable?

Back

The 1 variable that is changed in an experiment.

Front

What does a bullseye demonstrating low accuracy and high precision indicate?

Back

The measurements are clustered closely together but not near the target value.

Front

How do you calculate average velocity from a position-time graph?

Back

Average velocity = (change in position) / (change in time).

Front

What is the total distance traveled if the displacement vectors sum to 5.0 m?

Back

The total distance traveled is 5.0 m.

Front

Define significant figures.

Back

Significant figures are the digits in a number that contribute to its precision.

Front

What is the difference between accuracy and precision?

Back

Accuracy refers to how close a measurement is to the true value, while precision refers to how consistent repeated measurements are.

Front

What is a position-time graph?

Back

A graph that shows the position of an object over time.

Front

How do you determine the slope of a position-time graph?

Back

The slope represents the velocity of the object.

Front

What is the formula for calculating average speed?

Back

Average speed = total distance / total time.