Motion — Science STD 9 — Question

Choose the incorrect statement:

The technique of growing two or more different crops together in the same field is known as:

Earth goes round the SUN with:

The principal cereal crop of India is:

The energy possessed by an oscillating pendulum of a clock is:

Pulses are rich in:

Jetplanes and rockets work on the principle of conservation of:

Seat of photosynthesis is:

The common biofertilizers used in organic farming are:

1. Margosa
2. Pyrethrum
3. Green manure.
4. Nitrogen fixing bacteria and cyanobacteria.

The momentum of a bullet of mass 20g fired from a gun is 10kg m/s. The kinetic energy of this bullet in kJ will be:

1. 5
2. 1.5
3. 2.5
4. 25