Physics Exam True/False Questions
A bullet was fired from a rifle horizontally to the earth's surface and another bullet was dropped precisely the same moment and from the same height the original bullet was fired. the one fired would hit the ground after the dropped bullet hits the ground.
False
An object at rest has no inertia.
False
At the apex of its motion, the vertical component of a projectile's velocity is not affected by gravity.
False
Force and pressure are the same thing.
False
If an object is moving, a net force must be acting upon it.
False
In air, a baseball and a tennis ball would have the same terminal velocity.
False
In an object is not moving, no forces are acting upon it.
False
Inertia is a vector quantity. It has both magnitude and direction.
False
Inertia is directly proportional to an object's velocity.
False
Mass and weight are the same.
False
Once moving at a constant speed, you still have to pedal your bike to keep moving at that speed. This violates Newton's first law of motion.
False
The accleration of an object is inversely proportional to the net force applied to the object.
False
The effect of gravity causes the horizontal component of a projectile's velocity to decrease.
False
The time it takes a projectile to fall is independent of its initial velocity and the angle at which it is launched.
False
At the apex of its motion, the vertical component of a projectile's velocity of zero.
True
F=ma and a=F/m are both mathematical representations of Newton's 2nd Law
True
Friction is a force that opposes motion
True
If an object is accelerating, a net force must be acting upon it.
True
If you happen to be walking on a frozzen lake and you hear a loud crack , it would be wise to lay upon the ice rather than walk upon it.
True
In a vacuum, a bowling ball and a ping pong ball would accelerate at the same rate when dropped.
True
Inertia is directly proportional to an object's mass.
True
Pressure is directly proportional to force.
True
The acceleration of an object is inversely proportional to the mass of the object.
True
The earth's gravity is accelerating all satellites in orbit towards its center.
True
The rate at which a projectile falls is independent of its initial velocity and the angle at which it is launched.
True
