An astronaut takes an object to the moon where there is less gravity. Explain how the mass and weight of the object on the moon would compare to its mass and weight on Earth.

Which measurement has three significant figures? A. 0.015 m B. 105 m C. 150 m D. 1.050 m

A dart is loaded into a spring-loaded toy dart gun by pushing the spring in by a distance d. For the next loading, the spring is compressed a distance 8d. How much work is required to load the second dart compared to that required to load the first?

Why must the height of the meniscus in the graduated cylinder match the height of the water in the tub when measuring volume?

An electric fence displays a warning sign about voltage and amperage of the fence. How would amperage and voltage affect the power of the fence?

1) The energy held in the molecules that your lunch is composed of

Tom stops using a new skin cream for five days to determine if the cream is the cause of a recent rash. What stage of the scientific method is Tom using?

Use your observations to determine qualitatively how the strength of the electric interaction between charged objects depends on the distance between them. Explain your reasoning (this is trickier than it might seem at first).

Far from any other masses, two masses, m1 and m2, are interacting gravitationally. The value for the mass of m1 suddenly doubles. What happens to the value of the gravitational force that mass m2 exerts on mass m1?

Which of the outer planets are most like Earth? How?

The pressure inside a champagne bottle can be quite high and can launch a cork explosively. Suppose you open a bottle at sea level. The absolute pressure inside a champagne bottle is 6 times atmospheric pressure; the cork has a mass of 7.