Final Exam Review (PL) - Part 1

Front

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

Back

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

Front

How is acceleration defined in physics?

Back

Acceleration is the rate of change of velocity of an object with respect to time.

Front

What is a heating curve?

Back

A heating curve is a graph that shows the change in temperature of a substance as it is heated over time.

Front

What is the difference between heating and cooling curves?

Back

Heating curves show temperature increases, while cooling curves show temperature decreases over time.

Front

What type of energy does a fan convert?

Back

A fan converts electrical energy into mechanical energy and sound energy.

Front

What does it mean for an object to be slowing down?

Back

Slowing down means that the object is decreasing its speed over time.

Front

What is the formula for calculating acceleration?

Back

Acceleration (a) = (Final velocity (v_f) - Initial velocity (v_i)) / Time (t).

Front

What is the significance of the slope in a velocity-time graph?

Back

The slope of a velocity-time graph represents the acceleration of the object.

Front

What happens to the temperature of a substance during a phase change?

Back

During a phase change, the temperature remains constant while the substance changes its state.

Front

What is the unit of acceleration?

Back

The unit of acceleration is meters per second squared (m/s²).