Question

interpreting slope (velocity) graphs
positive (upward) slope = moving forward (away from starting position)
negative (downward) slope = moving backward (toward starting position)
steep slope = moving quicker
shallow slope = moving slower
check your understanding (use the graphs shown above)

1. graph ________ represents an object that is moving quickly backward
2. graph ________ represents an object that is moving quickly forward
3. graph ________ represents an object that is moving slowly forward
4. graph ________ represents an object that is moving slowly backward

Explanation:

Step1: Identify quick backward - moving graph

Quick backward - moving means negative and steep slope. Graph D has a steep negative slope.

Step2: Identify quick forward - moving graph

Quick forward - moving means positive and steep slope. Graph A has a steep positive slope.

Step3: Identify slow forward - moving graph

Slow forward - moving means positive and shallow slope. Graph B has a shallow positive slope.

Step4: Identify slow backward - moving graph

Slow backward - moving means negative and shallow slope. Graph C has a shallow negative slope.

Answer:

1. D
2. A
3. B
4. C