help solving with kilograms in physical science

Question

 

Imagine that in cleaning out a cabinet in a house and you come across a box containg 1 kilogram of rice and a tin containing 2 kilograms of stale popcorn.  which of the following statements if FALSE?

 

 

1.  the volume of popcorn is twice the volume of rice

2.  the mass of the popcorn is twice th mass of the rice

3.  the weight of the popcorn is twice the weight of the rice

4.  the inertia of the popcorn is twice the inertia of the rice

 

 

Janet has 2 bowling balls.  one ball has a mass of 3 kilograms and the other has a mass of 5 kilograms.  it she uses the same amount of force to roll each ball down the alley, which ball was accelerate faster?

 

1.  the ball with a mass of 3 kilograms

2.  the ball with a mass of 5 kilograms

3.  both balls will accelerate at the same rate

 

 

Answer 1

False: 1. the volume of popcorn is twice the volume of rice

This doesn't make sense if you think about it.

 

 

Answer: 1. the ball with a mass of 3 kilograms

For this one think, F=m*a here force is constant. So F/m=a if you divide by the smaller number 3kg. This will make the acceleration(a) faster.