The acceleration of objects due to the gravitational force exerted on them is lower on the Moon than on Earth. Which one of the following statements is true about the mass and weight of an astronaut on the Moon's surface, compared to Earth?
A) Mass is less, weight is the same.
B) Mass is the same, weight is less.
C) Both mass and weight are less.
D) Both mass and weight are the same.
Question 2
A rectangular wooden block measures 10.0 cm 4.00 cm 2.00 cm. When the block is placed in water, it floats horizontally, with its bottom face 1.65 cm below the surface. What is the density of the wood? The density of water is 1.00 g/cm3.
A) 0.606 g/cm3 B) 1.65 g/cm3 C) 1.21 g/cm3 D) 0.350 g/cm3 E) 0.825 g/cm3
The Moon passing in front of the Sun, from the STEREO-B spacecraft.
Earth and the Moon
Our Moon
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