Can u guys check my 3 anwsers? *^* and tell me if i got them right?
you step on the scale and notice that you have lost five pounds. which of the following has changed?
a) only your mass changed.
b) only your weight changed. <
c) neither your mass nor weight changed.
d) both your mass and weight changed.
how could you increase the mass of a wooden block?
a) take it to jupiter where there is more gravity <
b) take it to the moon where there is less gravity
c) cut it in half
d) none of the above
if you went to the moon, how would your mass change relative to your mass on earth?
a) it would be the same on the moon as on earth
b) it would increase because of less gravity
c) it would decrease because of less gravity <
d) none of the above

Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative