Question

1. The force that brings the changes in the face while smiling is [ ]

a) Muscular force b) Electric force c) Gravitational force d) Friction

2. Pick the odd one among the following [ ]

a) Writing b) Washing

c) Pedalling a row boat d) Motion of moon around earth

3. While performing a physical activity muscles [ ]

a) Relax b) Lighten c) Remains normal d) None of these

4. The force which stops a moving ball on a rough surface is [ ]

a) Friction b) Gravitation c) Normal reaction d) Magnetic

5. A moving ball goes maximum distance on [ ]

a) Bandy surface b) Polished surface c) Rough surface d) Carpet

6. The direction of friction is [ ]

a) always along the direction of motion b) Always normal to the direction of motion

c) Always opposite to the relative motion d) None of these

7. When a book is kept on the table the forces acting are [ ]

a) Friction b) Gravitation c) Normal reaction d) Both b & c





I will mark as brainlist plz ​

Answer 1

Explanation:

1- Due to muscular force

2-motion of moon around the earth, because earth move not moon

3-Relax

4-Due to friction

5-polished surface

6-always opposite to the relative motion

7-Gravitation

I hope it will help you