Question
A student compares the effects of rubbing a balloon and a plastic bag on her hair. She rubs the balloon on her hair and then holds the balloon
up to a wall. The balloon sticks to the wall when she removes her hand. The student then rubs an empty plastic bag on her hair and holds the
bag up to the wall. The empty plastic bag falls to the floor when she removes her hand.
Which sentence best compares the effects of rubbing a plastic bag and a balloon on hair?
• A. The balloon becomes lighter than the empty plastic bag.
• B. The balloon becomes stickier than the empty plastic bag.
• C. The balloon builds up more static charge than the empty plastic bag.
• D. The balloon gains more energy of motion than the empty plastic bag.
S RESET
Fatima Khalid Ahmed Hassan Al Farsi, Growth: Science 3-5: for use with NGSS Question
ID#***01
Intl 2013
# 9
Answer
C. The balloon builds up more static charge than the empty plastic bag.