1) Your weight here on Earth can also be described as the ___. A. Pull gravity on you B. Force generated by the gravitational attraction of the Earth. C. No answer is correct D. Both answers are correct
2) For the children to enjoy playing more in the slides, we have to ___ the friction. A. increase B. decrease C. maintain D. disregard
3) Why is the one disadvantage of friction in our everyday life? A. It allows us to push objects easily on smooth floors. B. It allows us to walk or run steadily on the ground. C. It slows down motion of moving objects. D. It gives more excitement to skaters on the rink.
4) What is one advantage of friction in our everyday life? A. We need greater effort to move objects around the house. B. We easily slide on too shiny floors in the house. C. It can cause forest fires because of rubbing of trees. D. We are able to produce fire.
5) What is the unit of measure for gravitational force? A. Newton B. Metric ton C. Newton per kilogram D. Decagram
