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Read the Following Selection
Read about what forces do or click on the play button below to listen aloud.
What Can Forces Do?
Forces Make Things Move
A soccer ball sits on a field. The ball will not move by itself. Can you make the ball move? You could kick it.
You want to get socks from a drawer. How do you open the drawer? You pull the handle.
Objects need a force to make them move. You kick a soccer ball with your foot. You pull a drawer with your hand. Pushing and pulling are forces. Forces make things move.
You use muscular force to push and pull.
Forces Make Things Stop
Forces can also make objects stop. A shopping cart will roll down a hill. You can stop the cart by grabbing the handle. Or you could push against the cart. Pushing and pulling are forces. Pushing and pulling can make objects stop moving.
What Else Can Forces Do?
Change speed: Forces can change the speed of an object. You push a toy car to make the car start moving. To make the car go faster, you can push the car harder. You can use force to change the speed of a moving object. The second push makes the car go faster.
Change direction: Forces can make an object change direction. To change the direction of a baseball that is pitched, you hit the ball with a bat. When you hit the baseball, you push the ball with the bat. The baseball changes direction and moves away from you.
Now, show what you know!
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1. Which type of force do you use for each action below?
Pick an apple from a tree.CorrectIncorrect
2. Which type of force do you use for each action below?
Ring a doorbell.CorrectIncorrect
3. Which type of force do you use for each action below?
Throw a ball.CorrectIncorrect
4. Which type of force do you use for each action below?
Undo a zipper.CorrectIncorrect
Read this story:
Tanya put her dog Sparky on a leash and took him for a walk. Sparky started to run down the sidewalk. This made Tanya run. Tanya got tired of running. She used the leash to make Sparky slow down. Then Sparky saw a squirrel and began to chase it. Sparky pulled Tanya right through Mr. Lee’s flower garden!
5. What are the pulling forces in this story? Give two examples.
Great answer!Great answer!
Type your response above.