Instructions: Look at the motion graphs shown below. Match the descriptions here to the coorect graph. Description a. A car moving at a constant speed stops and then moves in the opposite dorection at the same speed.
Description b. A car moving at a constant speed stops and then moves faster in the same diresction.
Description c. A car moving at a constant speed changes to a higher constant speed
Description d. A car moving at a constant speed changes to a lower constant speed.

A-2

B-4

C-1

D-3

Explanation:

In description A, the car is first moving at a constant speed, which means it will have a constant slope. Then, it stops, which causes a slope of 0. Finally, it moves in the opposite direction, which will cause a negative slope. The second graph has a positive, zero, and negative slope; therefore, it fits A.

Description B has a constant slope, a zero slope, and a higher slope. Graph 4 goes up normally, then stops, and finally goes steeper. This fits description B.

Description C has a constant and then a higher slope. Graph 1, increases steadily and then sharply increases; which fits C.

Description D has a constant and then a lower slope. Graph 3 increases fast but then flattens, which matches the slopes in the description.

the farther away the object is from the central star (the sun) it's gravitainal pull on the object is weaker when it is farther

explanation:

c. establishing proper sleep hygiene