Work, Power and Energy

Attention getter: which would you choose elevator or stairs? Are you getting a bit tired of that three-inch spare tire around your waist? Material Are you becoming increasingly lazy, fat?

Before the gymnast jumps on the springboard the board and springs have potential energy. When the gymnast jumps on the springboard it turns into kinetic energy and causes the board to push the gymnast up. The larger number of springs in the air board have more potential energy which leads to the hypothesis that it will provide the greatest

She does not move to the next rung until both feet are on the same rung.

C. What happens to the speed as time goes by for the car on the downhill ramp?

The purpose of this first climb is to build up potential energy. The concept of

2) A boat can move at 30 km/h in still water. How long will it take to move 12 km upstream in a river flowing 6.0 km/h?

-The climb puts the heart into overdrive and increases our breathing requiring more rest if one is not in good physical

Focus. Take a deep breath. Don’t look at everyone around you. Keep your head down. Look at the blue mat on the floor, creasing in wherever you put your feet. Glance at the clock, there are 4 minutes remaining. Put on your jacket, before you start shivering. Remain sitting in the chair. In just 3 and ½ minutes you will climb. When that happens remember to breath and stay focused. Don’t glance at the audience around you, and especially don’t pay attention to the slight pain of your shoes pinching your toes. When the timer hits 2 and ½ minutes start putting on your shoes. They are made of rubber and red felt. Right, then left. The timer has 10 seconds left. Stand up, take off your jacket, and start walking backwards towards the climb. Place your

If we measured in meters then a=4.9.) t is the time in seconds, v0 is the initial velocity of 30 feet per second, and s0 is the initial height or 4 feet. Thus we have:

In figure 1, the force of the gravity is pulling the person and the parachute towards the ground because gravitational force makes the object fall quickly. However, the parachute slows the person down because it causes air resistance as it pushes the parachute back up and creates an opposite gravitational force. The forces “push or a pull” are called action and reaction forces, the subject of newton’s third law. During this investigation, the push force is the air resistance and opposite (pull) force is the gravity.

Fear, a Double-edged Sword Whether as a small child or as an adult, most people have experienced the heart retching terror of walking up their stairs on a dark and quiet night. It will usually begin as a nervous, fast-paced, walk which will then form into an awkward run. Running is obviously the quickest way to escape the much dreaded, ankle-grabbing monster that lives in the basements of most unlucky humans. As mankind it is natural that one would run from something they dread.

Arthur in the picture is wearing some type of bath robe while he is walking down the stairs, while Arthur is upstairs in a robe he is probably sleeping or tired. while Arthur is wearing a robe walking down the stairs arthur was tired he would have a higher chance of slipping or tripping down the stairs.when you are wearing a robe you are most likely tired. When you or tired you are more likely to fall down the stairs.

up, and, holding firmly to the foot-board managed to keep on my feet to the door. The shock was

“Ian!” she yelled. It was the only foreseeable answer to her dilemma. There was an entire flight of stairs between her and her belongings, so walking proved to be an obvious hazard. Imagine if she fell and broke something; she’d be out of work for months. No, it was too risky.

It literally felt more like climbing compared to walking. An inclined road lead to the acres of land my parents owned. It took me half an hour just to reach the family sign. It read "Donovan Residence." The next hour would be spent trying to get to the mailbox.