Lesson 4.6 Changing direction

1. What does "applying a force" mean?

• a. to apply natural forces

• b. to apply push, pull and twist

• c. to apply gravity

• d. to apply wind and water forces

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2. What type of force was applied to this ball in this picture?

• a. strong pull force

• b. strong gravity

• c. strong push force

• d. strong twist force

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3. In which direction was the ball moving at the start?

• a. The ball was moving in a straight path / line.

• b. The ball was moving in zigzags

• c. The ball was moving in curves

• d. The ball was not moving at all.

4. Why did the ball change its direction?

• a. because the player stopped the ball

• b. because the player kicked it by curving his leg.

• c. because the player kicked it in zigzag motion

• d. because the player kicked it by angling his foot towards the goal box.

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5. After the player had kicked the ball, to which direction was the ball moving afterwards? Tick all correct answers.

• The ball has changed its direction.

• The ball stayed in its straight path.

• The ball moved towards the goal box.

• The ball had stopped moving.

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6. In this game of Ahmed Musa at FIFA World Cup, how many times the forces was applied to the ball before reaching the goal box.

• a. 10 times

• b. 7 times

• c. 5 times

• d. 3 times

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7. How does a football player changes the direction of a moving ball so that it reaches its goal box?

• a. by zigzag motion to the goal box

• b. by applying large pull force to the ball's goal box direction

• c. by curving motion to the goal box

• d. by angling his foot to the ball's goal box direction

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8. In driving a bicycle, how can you change the direction of your moving bicycle?

• a. I will manoeuvre its wheels towards opposite direction.

• b. I will manoeuvre its handle to a straight direction.

• c. I will manoeuvre its wheels in a backward direction.

• d. I will apply a force to its handle to manoeuvre it in the desired direction.

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9. What will happen if all objects on earth will just travel in one straight path or line?

• a. everything will be in order

• b. objects will be floating

• c. everything will be sticking to each other

• d. objects will be colliding or crushing against each other

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10. After learning about this lesson, can you now tell why is it important for objects to change direction?

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