2024 Physics Semester 1 Final Review

Front

What does a decreasing speed graph look like?

Back

A graph that shows a decrease in speed typically has a downward slope, indicating that the object is slowing down over time. For example, Graph C represents a decrease in speed.

Front

How can you identify if two runners are moving at the same speed in a graph?

Back

If the lines representing the runners in the graph are parallel and have the same slope, they are moving at the same speed. For instance, Graph D shows both runners moving at the same speed.

Front

What does it mean when a car is changing direction in a motion graph?

Back

When a car is changing direction, the graph will show a change in the slope or a curve. At the green circle, the car is changing direction.

Front

How do you calculate the time taken to travel a certain distance at a constant speed?

Back

Time = Distance / Speed. For example, a car driving at 40 mph to travel 100 miles takes 2.5 hours.

Front

What is the formula for calculating acceleration?

Back

Acceleration = (Final Velocity - Initial Velocity) / Time. For example, a roller coaster accelerating from 6.0 m/s to 70 m/s over 4 seconds has an acceleration of 16 m/s².

Front

Define speed in physics.

Back

Speed is the distance traveled per unit of time, typically measured in meters per second (m/s) or miles per hour (mph).

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.

Front

What does a flat line on a distance-time graph indicate?

Back

A flat line indicates that the object is at rest, meaning it is not changing its position over time.

Front

How do you interpret a steep slope on a distance-time graph?

Back

A steep slope indicates a high speed, meaning the object is covering a large distance in a short amount of time.

Front

What is the significance of the area under a velocity-time graph?

Back

The area under a velocity-time graph represents the distance traveled by the object during that time interval.