Worksheets[10-13-25][Part 2] Newton's First Law of Motion
Total questions: 10
Worksheet time: 10mins
Which of the following forces is classified as a non-contact force?
Tension in a rope pulling a block.
Normal force exerted by a table on a book.
Gravitational force acting on a falling object.
Frictional force resisting the motion of a sliding box.
The force exerted by a tightly stretched cable or cord on an object is known as tension. This type of force is fundamentally a:
Non-contact force only if the rope is massless.
Non-contact force because it acts over a distance.
Field force that requires no medium for transmission.
Contact force because it involves a direct touch between the rope and the object.
Which of the following statements correctly distinguishes between mass and weight?
An object's mass is zero in space, but its weight is constant everywhere.
Mass is a measure of the pull of gravity, while weight is a measure of inertia.
Mass is measured in Newtons (N), and weight is measured in kilograms (kg).
Mass is a scalar quantity and is an intrinsic property of an object, while weight is a vector quantity that depends on location.
An astronaut travels from Earth, where the acceleration due to gravity is g, to the Moon, where the acceleration due to gravity is approximately 6g. Which of the following changes will occur?
The astronaut's mass will remain the same, but their weight will decrease.
The astronaut's mass will decrease, but their weight will remain the same.
The astronaut's weight will increase, but their mass will remain the same.
Both the astronaut's mass and weight will decrease.
Newton's First Law of Motion is often called the law of inertia. Inertia is best described as an object's tendency to:
Accelerate when a net force is applied.
Resist any change in its state of motion
Move in a straight line with increasing speed.
Remain at rest, regardless of any external forces.
If a moving object has a net external force of zero acting on it, what can be definitively concluded about its motion?
The object must be at rest.
The object is slowing down.
The object's velocity is constant
The object's velocity must be increasing.
A book is resting on a horizontal table. The forces acting on the book are the gravitational force (weight) pulling down and the normal force from the table pushing up. Which of the following is true?
The net force is zero, and the book is in a state of equilibrium.
The net force is non-zero, but the book's inertia prevents it from moving.
The book is accelerating upward because the normal force is slightly stronger.
The net force is slightly greater than zero, causing the book to remain stationary.
A passenger is riding in a car that is traveling at a high, constant speed. The driver suddenly applies the brakes, bringing the car to a quick stop. The passenger's body moves forward relative to the car seat. This phenomenon is a direct consequence of:
Gravity
Inertia
A decrease in the passenger's mass.
Friction between the seat and the passenger.
In a frictionless environment, a spacecraft is traveling through space at a constant velocity of 500 m/s. If no rocket engines are fired, how much net force must be applied to the spacecraft to maintain this velocity?
Zero net force.
A net force equal to its mass times its acceleration.
A small force applied in the opposite direction to counteract gravity.
A force slightly greater than zero, applied in the direction of motion.
An object moving with a constant velocity has an acceleration of zero. According to Newton's First Law, this state of motion (constant velocity) can only be maintained if:
The object's mass is also constant.
Only gravitational forces are present.
No forces whatsoever are acting on the object.
The vector sum of all forces acting on the object is zero.
