A. Choose the correct option.
1. When two forces in the same direction act on an object, then the resultant magnitude
of the forces acting on the object is
a. the sum of the two forces
b. equal to the smaller force
c. the difference between the two forces
d. equal to the larger force
2. Gravitational force
a. is a 'non-contact force'.
b. opposes motion of a body , just like friction.
C. can act only if a body is charged.
d. is zero on the moon.
3. This is an example of a contact force.
a. Electrostatic force
b. Magnetic force
c. Friction
d. Gravitational force
4. This force is our weight.
a. Electrostatic force
b. Magnetic force
c. Friction
d. Gravitational force
5. Static friction acts when a body is
a. moving
b. stationary
C. rolling
d. sliding
6. The SI unit of force is
a. meters per second
b. newton
c. pascal
d. newton per meter
7. We can expect the force of friction to be greater for an object moving on a surface if
the surfaces in contact are
a. smooth and the object is heavier
b. rough and the object is heavier
C. smooth and the object is lighter d. rough and the object is lighter
8. This force makes the Earth go around the Sun.
a. Electrostatic force
b. Frictional force
C. Gravitational force
d. Magnetic force
9. A'streamlined' shape is given to automobiles in order to
a. increase friction
b. reduce drag
C. reduce gravitational force
d. get greater electrostatic force
Answers
Answered by
2
Answer:
1) b. equal to the smaller force.
Explanation:
2)a.is a non'- contact forces.3)d the gravitational force is to smaller than or equal electronic force.4)d.84kgm.5)a.moving. 6) a. meter per second.7) c. smooth and the object is lighter. 8) c. 24 9)c. reduce gravitational force.
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