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If a crane lifts 1,500 newtons of material a distance of 100 meters, how much work is done?
A force of 48 joules was used to push a coffee table 8 meters across the floor. With what force was the coffee table pushed?
A crane uses a force of 846 newtons to lift a steel beam. A total of 63,450 joules of work was done. How far was the steel beam lifted?
An astronaut weighs 180 pounds on Earth, but weighs less than 30 pounds on the moon. This is a result of:
Five gears are connected in series. If the first gear turns clockwise, the fourth gear will turn:
Which of the following is not a simple machine?
A mover uses a 12-foot long ramp that reduces the force he needs to move any object by 1/3. Since the mechanical advantage of a ramp is equal to the length of the ramp divided by the height of the ramp, how high is the bed of the moverâ€™s truck?
A crowbar is an example of:
The gears on a bike reflect an 8:3 turn ratio between the front wheel and back wheel. If someone pedals 240 revolutions per minute (rpm), how fast will the rear wheel rotate?
A compound pulley is set up with a mechanical advantage of 3. A mover could use it to reduce the amount of effort needed to move a load of 120 newtons with a force of:
What is the power of an electronic that can perform 3,500 joules of work in 5 seconds?
The fulcrum of a lever is:
A man has difficulty carrying a box of his things to his car, so he slides it across the pavement. What force will be acting as a resistance?
Which of the following is not a simple machine?
A baseball player does 1234 Joules of work when hitting a baseball into left field. Assuming the baseball landed 100 meters away from home plate, how much force did the player use to hit the ball?
A fixed pulley system will take a load that takes 90 newtons of force to move and reduce it to:
A lever with an effort arm of 15 feet and a load arm of 5 feet would have a mechanical advantage of:
A bottle opener is an example of:
Two gears are connected as part of a series. If the first gear has 60 teeth and the second gear has 12 teeth, what is the rotation ratio of the first gear to the second gear?
A school wants to build a wheelchair ramp that would reduce the effort needed to travel up it by half. If the staircase is 3 feet high, how far will the ramp need to extend outwards?
Andrew kicked a soccer ball and exerted 200 newtons of force. If he did 1000 joules of work, how far did he kick the soccer ball?
It took 20 newtons to push a pile of bricks along the floor a distance of 5 meters. How much work was done?
A force acting on a stationary object is moving west, and another force acting on the stationary object is moving east. These forces are considered:
Julian did 80 joules of work when he threw a softball for 4 meters. How much force did he exert when he threw the baseball?
What is the power of a food processor that can perform 3,750 joules of work in 15 seconds?