Physics Semester 1 Review 24-25

Front

What is the resultant of two vectors moving in the same direction?

Back

The resultant is the sum of the magnitudes of the vectors. For example, if you have 10 m right and 7 m right, the resultant is +17 m.

Front

What unit is used to measure distance in physics?

Back

Distance is measured in meters.

Front

What is displacement?

Back

Displacement is the shortest distance from the initial to the final position of an object, which can be zero if the object returns to its starting point.

Front

How do you determine acceleration from a velocity-time graph?

Back

To determine acceleration, you must divide the change in velocity by the time taken.

Front

What equation is used to find the resultant of two perpendicular vectors?

Back

R = √(a² + b²) where R is the resultant, and a and b are the magnitudes of the two vectors.

Front

What is the difference between distance and displacement?

Back

Distance is a scalar quantity representing the total path length, while displacement is a vector quantity representing the shortest path from start to finish.

Front

What does a velocity-time graph represent?

Back

A velocity-time graph shows how the velocity of an object changes over time.

Front

What is the formula for calculating average speed?

Back

Average speed = total distance / total time.

Front

What is the significance of the slope on a distance-time graph?

Back

The slope of a distance-time graph represents the speed of the object.

Front

What is the formula for acceleration?

Back

Acceleration = (final velocity - initial velocity) / time.