12.6 AC P&K Energy Transformations and Speed

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as converting mechanical energy into electrical energy.

Front

What type of energy transformation occurs in wind turbines?

Back

Mechanical energy is transformed into electrical energy.

Front

Define average speed.

Back

Average speed is the total distance traveled divided by the total time taken.

Front

What does a stationary object mean in terms of speed?

Back

A stationary object has a speed of 0; it is not moving.

Front

What does it mean when an object is accelerating?

Back

Acceleration refers to the rate of change of velocity of an object; it can mean speeding up, slowing down, or changing direction.

Front

How can you determine the speed of an object from a graph?

Back

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

Front

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

Back

A flat line indicates that the object is stationary and not changing its position over time.

Front

What does it mean if an object is moving at a constant speed?

Back

Constant speed means the object covers equal distances in equal intervals of time without speeding up or slowing down.

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 happens to the speed of an object when it is in free fall?

Back

The speed of an object in free fall increases due to the acceleration of gravity.