# Midterm 6

 100 NM What is four? What is False? Density is a material property. Since both materials are the same there can be no difference in density. 200 NM What is True? Although iron is a solid at what we call normal temperatures, iron can also be a liquid, gas, or plasma. This is true of any element. . 300 NM What is False? According to quantum mechanics, electrons move around the nucleus in orbitals with well-defined yet complex shapes. If we could see orbitals, they would look nothing like a tiny solar system. 400NM •What is true? The melting and freezing temperatures of water are exactly the same. 500 NM What is true? The melting and freezing temperatures of water are exactly the same. 100 MM INCREASES 200 MM What is increase the time of contact with the ball 300 MM WEST 400 MM requires a smaller force 500 MM What is the trampoline applies a bigger impulse A mass with a momentum of 40kgm/s receives an impulse of 30 Nsec in the direction opposite its motion. Its final momentum is: Pf = 40 - 30 = +10 kg∙m/s Authorpugsrule915 ID4710 Card SetMidterm 6 DescriptionD Updated2010-01-22T04:23:00Z Show Answers