QUESTION 5   Ty is investigating the heat conductivity…

QUESTION 5   Ty is investigating the heat conductivity of four different metals. He places a wax candle on an aluminium rod.       Right click on the button to open the experimental set up in a new window.   Ty heats the end of the aluminium rod. The wax candle falls off the bar when the heat reaches it. He records the time it takes for the wax candle to fall off.  

4. A rubber ball and a lump of clay have equal mass.  They a…

4. A rubber ball and a lump of clay have equal mass.  They are thrown with equal speed against a wall. The ball bounces back with nearly the same speed with which it hit. The clay sticks to the wall. Which one of these objects experiences the greater momentum change?