PMA Review

Front

What does a distance vs. time graph represent?

Back

It shows how the distance of an object changes over time.

Front

What does a flat line on a distance vs. time graph indicate?

Back

The object is not moving (zero speed).

Front

What does a positive slope on a distance vs. time graph indicate?

Back

The object's distance is increasing over time (constant speed).

Front

What does a negative slope on a distance vs. time graph indicate?

Back

The object is returning home (decreasing distance).

Front

What are unbalanced forces?

Back

Forces that cause an object to change its motion.

Front

What are balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Front

What is friction?

Back

A force that opposes the motion of an object.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is a push force?

Back

A force that moves an object away from the source of the force.

Front

What is a pull force?

Back

A force that draws an object closer to the source of the force.