Flashcard 7

Front

What is acceleration?

Back

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

Front

What does a velocity-time graph represent?

Back

A velocity-time graph shows how the velocity of an object changes over time. The slope of the graph indicates acceleration.

Front

What does it mean when an object has zero acceleration?

Back

Zero acceleration means that the object's velocity is constant; it is not speeding up or slowing down.

Front

What is displacement?

Back

Displacement is the shortest distance from the initial to the final position of an object, along with the direction.

Front

What is a free-body diagram?

Back

A free-body diagram is a graphical representation used to visualize the forces acting on an object.

Front

What is the role of friction in motion?

Back

Friction is a force that opposes the motion of an object, causing it to slow down or stop.

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 it mean for an object to change direction?

Back

Changing direction means that the object is altering its path of motion, which can involve acceleration.

Front

What is constant acceleration?

Back

Constant acceleration means that the rate of change of velocity is the same over time.

Front

How do you calculate the net force acting on an object?

Back

Net force is calculated by adding all the forces acting on an object, taking into account their directions.