An energy diagram for a system is shown. The system has a total energy of E1. T/F? the object will have the slowest speed at point d object will have maximun speed at a The object will have a negative speed to the right of point f An object will speed up when it moves from point e to point a point f is turning point

Which has the greatest potential energy from the following options? OA person standing on top of a hill O a bowling ball near the bottom of a fall from a 10 story building O A car rolling near the bottom of the hill O a car parked on top of the hill

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 350 3 300 energy? 250 200 150 100 50 2 4 8. 10 Time (s) -Mechanical Energy ....... Potential Energy Kinetic Energy Your answer: They are directly related. They are inversely related. There is no relationship between the two. There is not enough information for a conclusion. Energy (kJ)

A sled starts at point A from rest at the top of the hill.  The sled with people has a combined mass of 25 kg.  Apply the law of conservation of energy to determine the gravitational potential energy, kinetic energy, mechanical energy, and speed of the sled at points A and C.  Height at A = 20 m Height at C = 10 m Height at E = 0 m

In order to double kinetic energy, the speed should be? A: increased by the factor of two B: increased by the factor of sqrt(2) C: descreased by the factor of sqrt(2) D: decreased by the factor of two

Calculate the work done by a person by lifting a 7kg bowling ball from the rack 0.45 m above the ground above their head 2.6 m above the ground. If the person does this work in 3 seconds, calculate the amount of power.

The roller coaster has a PE of 10,000 J when it begins its downhill run. How much total energy does it have when it is halfway down the hill?   Which answer below is correct 10,000 J 5,000 J 10,000 N 5,000 N

A force of F = 186 N pulls a mass of 15 kg a distance of x = 2.4 m, as shown. How much work is done by the force, F? F m E

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.

Peter and Brian are pushing against a stationary wall. Brian stops after 10 min, while Peter is able to push for 5 min longer. What is the most correct answer? O Peter does 75 % more work than Brian O Peter does 50 % more work than Brian O Peter does 150 % more work than Brian O Neither of them do any work O Peter does 200 % more work than Brian