1. A component that allows only unidirectional current to pass through it is

2. Steady D.C voltage is also known as

3. The graph of alternating current is a

4. A device used to store energy in electrical circuits is

5. A Projectile will attain its maximum range if it is fired at an angle of

6. The only force acting on a bouncing ball is

7. If a spinster starting from rest has an acceleration of 5 $ms^{-2}$ during 1st 2.0 s of race, then her velocity after 2 s is

8. The Equations of motion can be used for

9. If a student drops a stone from a cliff of height 30 m and the time it takes to reach the ground is 2.6 s, then the acceleration due to gravity is

10. A train travelling at 20 $ms^{-1}$ accelerates at 0.5 $ms^{-2}$ for 30 s, the distance travelled by train is