The pedals on a bicycle give a mechanical advantage by allowing you to turn the pedals a distance to turn the circumstance of the wheels.

a)long, larger
b)long, shorter c)short, larger
d)short, shorter

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted