Question 1 The two graphs show the changes in energy and position as a box moves down a ramp. According to the graphs, the box's potential energy at the top of the ramp changes into energy at the bottom of the ramp. Select one: O kinetic O potential mechanical total Image Source: Boston University, Andrew Duffy Energy (1) . 6 4 2 O 0 Height (cm) 40 20 0 0 Energy vs. position 20 40 60 80 100 120 140 160 180 200 Mechanical Potential 20 Kinetic x(cm) 80 100 120 140 160 180 200 Width (cm

When released, a 120-g block slides down the path shown below, reaching the bottom with a speed of 4 m/s. How much work does the force of friction do? 2.0 m 4.0 m/s Image Description W = J

A toy car rolls along a track as shown below. From greatest to smallest, rank the potential energy of the toy car for the three marked locations. Provide an explanation for your ranking. A B C

Question 8 This graph shows different types of energy for a roller coaster car that starts at the top of a large hill and goes down to its lowest point at 6 s. Energy of a Roller Coaster Car 500 450 400 According to the graph, what is the most likely relationship between height and potential energy? 350 3 300 S 250 200 150 100 50 10 Time (s) - Mechanical Energy ...... Potential Energy Kinetic Energy Your answer: O They are directly related. O They are inversely related. O There is no relationship between the two. O There is not enough information for a conclusion.

An object moves along the x axis, subject to the potential energy shown in the figure. (Figure 1) The object has a mass of 2.4 kg and starts at rest at point A. A) What is the object's speed at point B? B) What is the object's speed at point C? C) What is the object's speed at point D? D) What are the turning points for this object? Check all that apply. Point A Point B Point C Point D Point E

Please help.

A cart is sliding along a frictionless track. It is moving with a speed of 10 m/s at position A on the track shown in the figure. What is the speed of the bead at point C?