1. Which of the followings is called a rectangular coordinate system?
(A) Triangular
(B) Spherical
(C) Cartesian
(D) Cylindrical
2. When a body is in equilibrium
(A) Maybe at rest or in uniform motion
(B) Always in motion
(C) Always at rest
(D) Always in uniform motion
3. The production of angular acceleration in a body is known as
(A) Centripetal force
(B) Torque
(C) Momentum
(D) Force
4. What will be the analog of force in rotational motion?
(A) Rotational inertia
(B) Moment of inertia
(C) Moment of force
(D) Torque
5. Which of the following is the definition of center of gravity
(A) Momentum and impulse
(B) Energy and work
(C) Mass and moment of inertia
(D) None of this
6. Which of the following is the SI unit of moment arm
(A) kg
(B) N/m
(C) Nm
(D) m
7. For greater precision and long range, missile used are
(A) Electricity
(B) Remote control guided
(C) Powered
(D) Both A and C
8. What is the path of the projectile?
(A) Parabola
(B) Circle
(C) Straight line
(D) Hyperbola
9. When an object is projected upward, its acceleration at the highest point is
(A) Zero
(B) Downwards
(C) Upwards
(D) Cannot be predicted
10. When there is an explosion of a bomb, which of the following energy does not change?
(A) Potential energy
(B) Kinetic energy
(C) Mechanical energy
(D) Chemical energy
11. When the distance covered by a body in a unit time is called
(A) Acceleration
(B) Velocity
(C) Speed
(D) Average velocity
12. Which of the following is Newton's first law?
(A) Mass and acceleration
(B) Velocity and acceleration
(C) Mass and force
(D) Mass and velocity