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February 2026

34,964 public questions were asked this month.

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Recent questions

Latest from February 2026

In which situation did the car achieve the greatest efficiency? (Assume the cars all have the same mass.)(1 point) Responses a car that traveled 70 kilometers on 5.0 liters of gas a car that traveled 70 kilometers on 5.0...
Asked by BAMBSMAN 1 answer
A square garden has 4 equal sides. The perimeter of the garden is the product of its side length, s, and 4. Translate the words into an algebraic expression.(1 point) Responses 4+s 4 plus s 4−s 4 minus s 4÷s 4 divided by...
Asked by GL 1 answer
Use the image of a person lifting a boulder with a lever to answer the question. An illustration shows a man using a stick and a small rock as a lever to lift a large rock. Where is the fulcrum in this situation? (1 poin...
Asked by BAMBSMAN 1 answer
A person is lifting a heavy box using a lever. What is the purpose of the lever in this situation?(1 point) Responses to reduce the force needed to lift the box while keeping the direction of the force the same to reduce...
Asked by BAMBSMAN 1 answer
A person applies 98 Newtons of force to a 20 kilogram box. They apply the force to the box over a 4-meter ramp, raising the box 2 meters from the ground. How much work is done? (1 point) Responses 40 Joules 40 Joules 194...
Asked by BAMBSMAN 1 answer
How do simple machines make work easier?(1 point) Responses They decrease the distance needed between a person and an object, allowing the person to apply more force and do more work. They decrease the distance needed be...
Asked by BAMBSMAN 1 answer
Question Which of these expressions is equal to 243?(1 point) Responses 35 3 superscript 5 baseline 73 7 cubed 37 3 superscript 7 baseline 53 5 cubed
Asked by GL 1 answer
Use the diagram of the pulley system to complete the statement. An illustration shows a system of two pulleys lifting a block. In this pulley system, the pulleys will _____blank the mechanical force required to lift the...
Asked by BAMBSMAN 1 answer
A person pushes a box. He applies a force of 400 newtons, and he pushes the box for a distance of 4 meters. After he stops pushing, the box slides forward another meter. How much work was done by the person?(1 point) Res...
Asked by BAMBSMAN 1 answer
A painter is going to paint a room shaped like a cube, with square walls that are 20 ft. on each side. A gallon of paint can be used to cover 400 square feet. How many gallons of paint should the painter buy if he is goi...
Asked by GL 1 answer
What can be done to improve the efficiency of a ramp?(1 point) Responses Insulate the surface with foam. Insulate the surface with foam. Smooth the surface. Smooth the surface. Add a rough surface. Add a rough surface. M...
Asked by BAMBSMAN 1 answer
Why are incandescent light bulbs considered to be lower efficiency than LED bulbs?(1 point) Responses A smaller percentage of the energy output of the LED bulb goes toward light. A smaller percentage of the energy output...
Asked by BAMBSMAN 1 answer
Question Which car has the greatest efficiency?(1 point) Responses a 900 kg car that travels 20 km per liter of fuel a 900 kg car that travels 20 km per liter of fuel a 1,200 kg car that travels 15 km per liter of fuel a...
Asked by BAMBSMAN 1 answer
Question A shovel performs several different functions. One of these is that it gives mechanical advantage as a lever. When does it act like a lever? (1 point) Responses when the shovel is in the dirt and you push down a...
Asked by BAMBSMAN 1 answer
Which statement best describes work?(1 point) Responses Work is done when a force causes an object to move. Work is done when a force causes an object to move. Work is done when an object continues in motion without a pu...
Asked by BAMBSMAN 1 answer
A soccer game is 90 minutes with m minutes of stoppage time. The total time is 90 + m. How long is the game with 12 minutes stoppage time?(1 point) Responses 78 minutes 78 minutes 102 minutes 102 minutes 92 minutes 92 mi...
Asked by GL 1 answer
Question The length of a garden is 28 feet, and its width is 16 feet. The perimeter of the rectangle is 2l + 2w where l is the length and w is the width. What is the perimeter of the garden?(1 point) Responses 88 feet 88...
Asked by GL 1 answer
Which statement best describes energy?(1 point) Responses Energy is the force that causes movement in an object. Energy is the force that causes movement in an object. Energy is a push or pull on an object that will chan...
Asked by BAMBSMAN 1 answer
In a game, a player gets 15 points for a correct answer and loses 10 points for an incorrect answer. The expression 15c−10a represents the total for c correct and a incorrect answers. How many points are scored for 24 co...
Asked by GL 1 answer
Evaluate 6k − j2 + 2k ÷ l when j = 5, k = 12, and l = 3.(1 point) Responses 54 54 39 39 55 55 70 70
Asked by GL 1 answer
Which example represents a class 2 lever?(1 point) Responses a screwdriver opening a paint can a screwdriver opening a paint can salad tongs picking up salad salad tongs picking up salad tweezers plucking hairs tweezers...
Asked by BAMBSMAN 1 answer
Evaluate 5y − 3z + 6, when y = 10 and z = 4.(1 point) Responses 44 44 22 22 32 32 10 10
Asked by GL 1 answer
Use the image to answer the question. An illustration shows a man rolling a drum upwards on an inclined surface. What is the effect of using this inclined plane? (1 point) Responses The object can be lifted while using a...
Asked by BAMBSMAN 1 answer
Which advantage does a screw have over a nail? (1 point) Responses A screw is able to reduce the total amount of work needed. A screw is able to reduce the total amount of work needed. A screw allows the force to be appl...
Asked by BAMBSMAN 1 answer
Use the picture to answer the question. An illustration shows a man lifting a box using a pulley. What is accomplished by this simple pulley? (1 point) Responses It changes the distance of the pull needed to lift the obj...
Asked by BAMBSMAN 1 answer