Welcome to your Grade 12 Physics chapter 2
After carefully reading the following 30 questions, choose the correct answer.
1.
In projectile motion, which component of velocity remains constant throughout the flight if air resistance is neglected?
2.
What is the shape of the trajectory followed by a projectile under the influence of gravity?
3.
Which of the following defines the "Range" of a projectile?
4.
At what angle of projection is the maximum horizontal range achieved for a given initial velocity?
5.
In uniform circular motion, what is the direction of the centripetal acceleration?
6.
Which physical quantity is defined as the rate of change of angular velocity?
7.
According to Kepler’s First Law, what is the shape of planetary orbits around the Sun?
8.
What happens to the vertical velocity of a projectile at its maximum height?
9.
The rotational analog of mass in linear motion is:
10.
Which law states that the square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit?
11.
A car moves around a circular track. If the speed is doubled while the radius remains constant, how does the centripetal acceleration change?
12.
Which vector operation is used to find the resultant of horizontal and vertical velocity components?
13.
If an object is thrown horizontally from a cliff, how does the time to hit the ground compare to an object dropped vertically from the same height?
14.
What is the relationship between linear velocity (v) and angular velocity (ω) for a point at radius (r)?
15.
Which force provides the necessary centripetal force for a planet orbiting the Sun?
16.
In rotational motion, what is the product of the moment of inertia and angular acceleration?
17.
The Law of Conservation of Angular Momentum states that momentum remains constant if:
18.
What is the unit of angular displacement in the SI system?
19.
For a projectile, the acceleration in the horizontal direction is:
20.
What happens to the period of a satellite if the radius of its orbit is increased?
21.
The area swept out by a planet's radius vector in equal intervals of time is constant. This is known as:
22.
What is the rotational kinetic energy of a body with moment of inertia (I) and angular velocity (ω)?
23.
In projectile motion, the vertical acceleration is:
24.
Relative velocity in two dimensions is calculated by:
25.
Which of the following is an example of two-dimensional motion?
26.
The point in a planetary orbit closest to the Sun is called:
27.
What is the SI unit for Torque?
28.
How is angular momentum (L) related to linear momentum (p) and radius (r)?
29.
For an oblique projectile, the total time of flight depends on:
30.
Which quantity is conserved for a planet in an elliptical orbit according to Kepler's laws?
