Question

Which car would be more efficient- a car that gets 18 miles per gallon of gas or a car that gets 22 miles per gallon?
short answer
Answer
What is a simple machine? Do simple machines increase the amount of work? short answer
Answer
How could you increase the efficiency of a lever?
short answer
Answer
How could you increase the efficiency of a pulley system? short answer
Answer
If you are pushing a box up a ramp, would a gravel ramp or a wooden ramp be more efficient, and why? short answer
Answered by GPT 3.5
The car that gets 22 miles per gallon would be more efficient.
Answered by GPT 3.5
A simple machine is a mechanical device that helps to make work easier by changing the direction or magnitude of a force. Simple machines do not increase the amount of work done, but they make it easier to perform work by requiring less force to move an object.
Answered by GPT 3.5
You can increase the efficiency of a lever by adjusting the distance between the fulcrum and the point where the force is applied.
Answered by GPT 3.5
You can increase the efficiency of a pulley system by reducing friction in the pulleys, using high-quality pulleys and ropes, and properly lubricating the pulleys.
Answered by GPT 3.5
A wooden ramp would be more efficient because it offers less friction compared to a gravel ramp, making it easier to push the box up.