Test B: D-T Graphs, Helicopters, Speed

Front

What is the definition of constant velocity?

Back

Constant velocity means an object is moving at a constant speed in a straight line without changing direction.

Front

What is acceleration?

Back

Acceleration is the rate of change of velocity of an object. It occurs when an object speeds up, slows down, or changes direction.

Front

How do you calculate time taken if speed and distance are known?

Back

Time = Distance / Speed.

Front

If Dave runs a 400 m race at a speed of 4 m/s, how long will it take him to finish?

Back

100 seconds.

Front

What does a negative velocity indicate?

Back

A negative velocity indicates that the object is moving in the opposite direction.

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 type of graph represents motion over time?

Back

A distance-time graph or a velocity-time graph.

Front

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

Back

A flat line indicates that the object is stationary (not moving).

Front

What does a steeper slope on a distance-time graph represent?

Back

A steeper slope indicates a higher speed.

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.