Mechanical Advantage Questions1) Marisa exerts 36N of force on a lever to lift a desk. The desk weighs 97N. What is the mechanical advantage of the lever, rounded to the nearest hundredth? 2) It takes 64N for a nutcracker to crack open a walnut. If Maurice exerts 7N of force on a nutcracker with a mechanical advantage of 8.7, will he be able to crack open the walnut?
3) Aaron exerts 104N of force on a 90kg bookshelf to push it up a ramp into a moving truck. What is the mechanical advantage of the ramp rounded to the nearest hundredth?
4) Parker pulls a pulley system's rope with 17N of force to lift a 67N load. What is the mechanical advantage of the pulley system, rounded to the nearest hundredth? 5) The steering wheel of Mr. Thompson's car has a mechanical advantage of 11.4. If he exerts 28N of force to turn it, how much force would be required to turn the car's wheels without it, rounded to the nearest hundredth? AnswersIdeal Mechanical Advantage Questions 1) Mark is biking. When he pedals a distance of 36cm, his bike moves 1.04m. What is the ideal mechanical advantage of his bike, rounded to the nearest hundredth?
2) Paul uses a golf club to hit a golf ball. It has a IMA of 0.32. If he moved the handle 12cm, how much would the clubhead move in centimeters, rounded to the nearest hundredth?
3) Gabriela pushed down on a lever through a distance of 1.37m and the load rose to a height of 39cm. If the load arm of the lever was 1.16m, then how long was the effort arm in meters, rounded to the nearest hundredth? 4) Jose uses an inclined plane to push a cart up a ramp to a height of 1.86m. The ideal mechanical advantage of the ramp is 4.6. What distance would Jose have to push the cart to get to the top of the ramp in meters, rounded to the nearest hundredth?
Answers True/False Questions1) T/F The mechanical advantage and ideal mechanical advantage of a lever are very different. 2) T/F The high gears on your bike have a mechanical advantage of less than 1. 3) T/F Inclined planes always have an ideal mechanical advantage greater than 1. 4) T/F We have invented a perfect machine that share the same IMA and MA. 5) T/F The ideal mechanical advantage is always greater than the mechanical advantage. 6) T/F On a lever, the input force is exerted onto the load arm. Answers
Mechanical Advantage Questions1) Marisa exerts 36N of force on a lever to lift a desk. The desk weighs 97N. What is the mechanical advantage of the lever, rounded to the nearest hundredth?
2) It takes 64N for a nutcracker to crack open a walnut. If Maurice exerts 7N of force on a nutcracker with a mechanical advantage of 8.7, will he be able to crack open the walnut?
3) Aaron exerts 104N of force on a 90kg bookshelf to push it up a ramp into a moving truck. What is the mechanical advantage of the ramp rounded to the nearest hundredth?
4) Parker pulls a pulley system's rope with 17N of force to lift a 67N load. What is the mechanical advantage of the pulley system, rounded to the nearest hundredth?
5) The steering wheel of Mr. Thompson's car has a mechanical advantage of 11.4. If he exerts 28N of force to turn it, how much force would be required to turn the car's wheels without it, rounded to the nearest hundredth?
AnswersIdeal Mechanical Advantage Questions
1) Mark is biking. When he pedals a distance of 36cm, his bike moves 1.04m. What is the ideal mechanical advantage of his bike, rounded to the nearest hundredth?
2) Paul uses a golf club to hit a golf ball. It has a IMA of 0.32. If he moved the handle 12cm, how much would the clubhead move in centimeters, rounded to the nearest hundredth?
3) Gabriela pushed down on a lever through a distance of 1.37m and the load rose to a height of 39cm. If the load arm of the lever was 1.16m, then how long was the effort arm in meters, rounded to the nearest hundredth?
4) Jose uses an inclined plane to push a cart up a ramp to a height of 1.86m. The ideal mechanical advantage of the ramp is 4.6. What distance would Jose have to push the cart to get to the top of the ramp in meters, rounded to the nearest hundredth?
Answers
True/False Questions1) T/F The mechanical advantage and ideal mechanical advantage of a lever are very different.
2) T/F The high gears on your bike have a mechanical advantage of less than 1.
3) T/F Inclined planes always have an ideal mechanical advantage greater than 1.
4) T/F We have invented a perfect machine that share the same IMA and MA.
5) T/F The ideal mechanical advantage is always greater than the mechanical advantage.
6) T/F On a lever, the input force is exerted onto the load arm.
Answers