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10. What kind of friction you produce when you use a wheelbarrow in carrying sand and gravel? A. Fluid friction B. Rolling friction C. Static friction D. Sliding friction
11. The following statements are examples of sliding friction, EXCEPT ONE. Which is it? A. A cabinet being slid across the floor B. Jeans on your legs when you put it on C. A bowl being pushed across the table D. When a train goes around
12. Why is it difficult for us to go up on a mountain than going down? A. We are moving against gravity B. We are pulled by the wind C. We are moving towards gravity D. All the given answers are correct
13. Mucus produced by snails, help them move along the ground. How does the mucus help snails move? A. Mucus leave a trail C. Mucus is cold B. Mucus reduces friction D. Mucus makes the snail lighter
14. Which of the following is acted upon by gravitational force? A. The book resting on the table B. Magnet stock to the metal C. The falling of fruits to the ground D. The swinging of pendulum
15. Which of these will have the strongest gravitational pull on Earth? A. A cotton ball C. a bottle of coke B. A half sack of corn D. an elephant
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