E-1 Flashcard

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 the speed and direction of the object's motion.

Front

Can graphs represent the motion of an object?

Back

Yes, graphs can visually represent the motion of an object, showing how its position, speed, or velocity changes over time.

Front

What does a velocity-time graph indicate?

Back

A velocity-time graph shows how the velocity of an object changes over time, allowing us to analyze its acceleration and deceleration.

Front

What does it mean if a line on a velocity-time graph is above the x-axis?

Back

If a line is above the x-axis, it indicates that the object is moving in a positive direction (away from the reference point) with a positive velocity.

Front

What does it mean if a line on a velocity-time graph is below the x-axis?

Back

If a line is below the x-axis, it indicates that the object is moving in a negative direction (toward the reference point) with a negative velocity.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object with respect to time. It can be positive (speeding up) or negative (slowing down).

Front

How can you determine if an object is speeding up from a velocity-time graph?

Back

An object is speeding up if the velocity is increasing over time, which is represented by an upward slope on the velocity-time graph.

Front

What does a flat line on a velocity-time graph represent?

Back

A flat line on a velocity-time graph indicates that the object is moving at a constant velocity, meaning there is no acceleration.

Front

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

Back

The area under a velocity-time graph represents the displacement of the object over the time interval.

Front

What is a motion sensor?

Back

A motion sensor is a device that detects the movement of objects, often used to measure the speed and direction of moving objects.