# A:visited { COLOR: purple; TEXT-DECORATION: none } A:hover { COLOR:red; TEXT-DECORATION: underline } A:link { COLOR: purple; TEXT-DECORATION: none } Forces Quiz

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 Fast Facts before doing the quiz A force is a push or a pull. Gravity gives objects weight. Gravity pulls to the centre of the earth. A ship floats in water because the water pushing it up (upthrust) is equal to the force of gravity (weight) pulling it down. Friction occurs when objects rub together. Friction also occurs when objects move through air. This is called air resistance. Can you answer the following questions? Read the questions carefully and then select the correct answer from the drop down list.
 1. What is the name of the force that slows down moving objects? gravity friction upthrust fraction 2. What is the name of the force which slows down a man falling with a parachute? gravity friction upthrust Air Resistance 3. What are forces measured in? newtons pounds metres grams 4. What is the name of the force that pulls objects to Earth? friction weight downthrust gravity 5. What is the name of the force that helps things float? friction upthrust gravity water 6. A ship floats because ..... Gravity keeps it on the water The weight of the ship is balanced by the upthrust of the water. The weight of the ship is balanced by the friction of the water. The size of the ship is balanced by the weight of the water. 7. If an object is stationary (not moving) the forces acting upon it are unbalanced soft balanced weak 8. In order for a stationary object to begin to move, what must happen to the forces that are acting on it? They must become unbalanced They must increase pressure on the object They must be balanced You need to turn them on 9. Which of the following is NOT a force? friction weight heat magnetism 10. When something starts to move a force can make it go faster. What is this called? repulsion speed push acceleration Click below to see your score!
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