Which is a part of a vacuum?

a) inclined plane

b) block and tackle

c) wedge

d) lever

Which of these activities increases the amount of carbon in the atmosphere?

In this experiment, you will first change the temperature of the water and determine its effect on the time it takes the tablet to dissolve.

When a passenger in train A looks at a passenger directly across in train B it appears that train B is not moving even though both trains are moving. How does the speed od train A compare to train B

F you are skateboarding and have to make a sharp turn to avoid a branch, in which direction are you accelerating?

If a cyclist of mass 70kg uses a bicycle of mass 7kg, how much work must the cyclist do against gravity in order to ascend to 2100 m from sea level (0m)

Which force does not operate at a distance of 1 m? A. Weak nuclear O B. Electric C. Gravitational D. Magnetic

The deflection of alpha particles in rutherford's gold foil experiments resulted in what change to the atomic model?

What happens during evaporation? A liquid changes to a gas. A liquid changes to a solid. A gas changes to a liquid. A solid changes to a liquid.

In a nuclear reaction, what is the name for the difference in mass when one type of matter is converted into another? A. radiation B. nucleons C. antimatter D. mass defect

Aspect of the physical world