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Physics Class 9 - Important MCQs - 7

Physics Class 9 - Important MCQs - 7

1. When one body moves vertically downward and the other upwards then the formula of tension in the string will be

1) 2m1 m2 g / (m1+m2)
2) rolling friction
3) m1 g / (m1+m2)
4) one Newton
2. When one body moves vertically downward and the other moves horizontally then the formula of acceleration will be

1) more acceleration is produced
2) m1 g / (m1+m2)
3) rolling friction
4) one Newton
3. Invention of a wheel

1) more acceleration is produced
2) 0.5
3) rolling friction
4) one Newton
4. That force which produces an acceleration of one meter per second per second in a body of one kilogram mass is

1) 0.5
2) Scalar quantity
3) more acceleration is produced
4) one Newton
5. If we increase the force applied on a body, it moves faster which means

1) 0.5
2) more acceleration is produced
3) Sin 0
4) Scalar quantity
6. Sin 30 * ( * stands for degrees )

1) Right angle triangle
2) Sin 0
3) Scalar quantity
4) 0.5
7. Mass

1) Scalar quantity
2) Right angle triangle
3) Vector quantity
4) Sin 0
8. Perpendicular / hypotenuse
1) Sin 0
2) Vector quantity
3) Right angle triangle
4) Scalar
9. Trigonometric ratios

1) Right angle triangle
2) Scalar
3) Vectors
4) Vector quantity
10. Acceleration

1) Vectors
2) Negative vector
3) Vector quantity
4) Scalar
11. Density

1) Force
2) Negative vector
3) Scalar
4) Vectors
12. Bold letters

1) Vectors
2) Negative vector
3) 0
4) Force
13. Opposite direction

1) 0
2) Negative vector
3) Vector
4) Force
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