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Science: Middle School: Grades 6, 7 and 8 Quiz - Forces 3 (Questions)

This Science quiz is called 'Forces 3' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.

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Push and friction are both types of force. By the early 20th century, Einstein developed a theory of relativity that correctly predicted the action of forces on objects with increasing momenta near the speed of light.

Test your knowledge in the following Science quiz about Forces.

1. What is force measured in?
[ ] Joules
[ ] Kilograms
[ ] Newtons
[ ] Pascals
2. Which of the following is NOT a force?
[ ] Gravity
[ ] Mass
[ ] Pull
[ ] Weight
3. Friction .......
[ ] doesn't affect a moving object
[ ] slows a moving object
[ ] speeds up a moving object
[ ] starts an object moving
4. What is weight measured in?
[ ] Joules
[ ] Kilograms
[ ] Newtons
[ ] Pascals
5. Which of the following statements about unbalanced forces is NOT true?
[ ] They can change the direction of a moving object
[ ] They can slow down an object
[ ] They have no effect on an object
[ ] They speed up an object
6. Which of the following statements about balanced forces is NOT true?
[ ] A moving object will continue to move at constant speed
[ ] A stationary object will not move
[ ] They are the same size acting in the opposite direction
[ ] They are the same size acting in the same direction
7. Which of the following is NOT a touching force?
[ ] A push
[ ] Air resistance
[ ] Friction
[ ] Magnetism
8. On Earth, 1kg weighs approximately 10 newtons. What would be the weight of 500g?
[ ] 1N
[ ] 5N
[ ] 50N
[ ] 500N
9. On Jupiter, 1kg weighs approximately 25 newtons. What would be the weight of 100g?
[ ] 0.25N
[ ] 2.5N
[ ] 250N
[ ] 2500N
10. A spring can be stretched by hanging weights on it. Which of the following is true?
[ ] The larger the force, the greater the stretch
[ ] The smaller the force, the greater the stretch
[ ] The spring does not exert a force on the weight
[ ] The weight does not exert a force on the spring
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Science: Middle School: Grades 6, 7 and 8 Quiz - Forces 3 (Answers)
1. What is force measured in?
[ ] Joules
[ ] Kilograms
[x] Newtons
[ ] Pascals
2. Which of the following is NOT a force?
[ ] Gravity
[x] Mass
[ ] Pull
[ ] Weight
3. Friction .......
[ ] doesn't affect a moving object
[x] slows a moving object
[ ] speeds up a moving object
[ ] starts an object moving
4. What is weight measured in?
[ ] Joules
[ ] Kilograms
[x] Newtons
[ ] Pascals
Weight is a force so is measured in newtons
5. Which of the following statements about unbalanced forces is NOT true?
[ ] They can change the direction of a moving object
[ ] They can slow down an object
[x] They have no effect on an object
[ ] They speed up an object
6. Which of the following statements about balanced forces is NOT true?
[ ] A moving object will continue to move at constant speed
[ ] A stationary object will not move
[ ] They are the same size acting in the opposite direction
[x] They are the same size acting in the same direction
7. Which of the following is NOT a touching force?
[ ] A push
[ ] Air resistance
[ ] Friction
[x] Magnetism
Magnets attract or repel at a distance
8. On Earth, 1kg weighs approximately 10 newtons. What would be the weight of 500g?
[ ] 1N
[x] 5N
[ ] 50N
[ ] 500N
500g = 0.5kg, 0.5kg weighs 0.5 x 10 = 5N
9. On Jupiter, 1kg weighs approximately 25 newtons. What would be the weight of 100g?
[ ] 0.25N
[x] 2.5N
[ ] 250N
[ ] 2500N
100g = 0.1kg, 0.1kg weighs 0.1 x 25 = 2.5N
10. A spring can be stretched by hanging weights on it. Which of the following is true?
[x] The larger the force, the greater the stretch
[ ] The smaller the force, the greater the stretch
[ ] The spring does not exert a force on the weight
[ ] The weight does not exert a force on the spring