Newton's First and Second Laws of Motion explain the relationship between an object's mass and the forces acting upon it. The First Law, often called the Law of Inertia, states that objects resist changes to their state of motion; an object at rest stays at rest, and an object in motion continues at a constant velocity unless an unbalanced force acts on it. Inertia is directly dependent on mass, meaning heavier objects have more inertia. The Second Law defines the relationship between force, mass, and acceleration, summarized by the formula \(F = m \cdot a\). This law implies that the acceleration of an object is produced when a force acts on a mass, and the greater the mass of the object, the greater the amount of force needed to accelerate it. Common units in these studies include kilograms for mass and Newtons for force.
رقم الاختبار802
الصفالصف الحادي عشر المتقدم
المادةفيزياء
الفصلالفصل الثالث
السنة الدراسية2025/2026
عدد الأسئلة20
إجمالي النقاط20
تاريخ الإضافة2026-04-19
الزيارات7
المعلم أو الناشرAmal Salman
اختر إجابة واحدة لكل سؤال. عند الاختيار ستظهر النتيجة فورًا: الأخضر صحيح، والأحمر خطأ، وسيظهر تفسير الإجابة مباشرة إن كان متوفرًا. وبعد آخر سؤال ستظهر الدرجة النهائية تلقائيًا.
Question 1
Points: 1
Newton's first law is also called the Law of ...
Explanation
Newton's first law is commonly referred to as the Law of Inertia because it describes the tendency of objects to resist changes in their state of motion.
Question 2
Points: 1
An object in motion tends to stay in motion unless an ___ force acts on it.
Explanation
According to Newton's First Law, a change in motion only occurs when an external unbalanced force acts upon the object.
Question 3
Points: 1
What kind(s) of objects have inertia?
Explanation
Inertia is a property of matter; therefore, any object that possesses mass has inertia, regardless of its state of motion.
Question 4
Points: 1
Newton's first law applies
Explanation
Newton's First Law describes the behavior of objects at rest (nonmoving) and objects in motion, stating they will maintain their state unless forced to change.
Question 5
Points: 1
With unbalanced forces, the object will move in the direction of the _______ force.
Explanation
Net force is determined by the vector sum of forces; the object accelerates in the direction of the resulting net force, which is dictated by the larger force when forces are opposing.
Question 6
Points: 1
One object has twice as much mass as another object. The first object also has also twice as much...
Explanation
Inertia is directly proportional to mass. If an object has twice the mass, it has twice the inertia.
Question 7
Points: 1
What can a force do?
Explanation
A force is a push or pull that can cause an object to start moving, stop moving, or change its direction (acceleration).
Question 8
Points: 1
What is the SI unit of mass?
Explanation
The standard International System of Units (SI) unit for measuring mass is the kilogram (kg).
Question 9
Points: 1
True or False: Inertia depends on the mass of an object.
Explanation
Inertia is solely dependent on the amount of mass an object contains; more mass means more inertia.
Question 10
Points: 1
According to Newton's First Law, what happens to the motion of an object when the net force acting on it is zero?
Explanation
Newton's First Law states that without a net external force, an object's velocity (speed and direction) remains constant.
Question 11
Points: 1
A group of physics teachers are taking some time off for a little putt-putt golf. The 15th hole at the Hole-In-One Putt-Putt Golf Course has a large metal rim that putters must use to guide their ball towards the hole. Mr. S guides a golf ball around the metal rim When the ball leaves the rim, which path (1, 2, or 3) will the golf ball follow?
Explanation
When the ball leaves the circular rim, the centripetal force holding it in a curve vanishes. According to Newton's First Law, the ball will then travel in a straight line tangent to the exit point (Path 2).
Question 12
Points: 1
What is the unit for force?
Explanation
The Newton (N) is the derived SI unit of force, named after Isaac Newton.
Question 13
Points: 1
A 20 kg bike accelerates at \(10\, m/s^{2}\). Calculate the force on the bike.
Explanation
Using Newton's Second Law \(F = m \cdot a\): \(F = 20\, kg \cdot 10\, m/s^{2} = 200\, N\).
Question 14
Points: 1
Will it take more force to push an empty shopping cart or a shopping cart that is full?
Explanation
A full shopping cart has more mass than an empty one. According to \(F = m \cdot a\), more mass requires more force to achieve the same acceleration.
Question 15
Points: 1
According to Newton's second Law, which would take more force to slow down?
Explanation
Slowing down is a form of acceleration (deceleration). Based on the context provided in the answer key, the silver car is assumed to have more mass, requiring more force to change its state of motion.
Question 16
Points: 1
Which of these best states Newton's Second Law?
Explanation
Newton's Second Law implies that force is directly proportional to mass (\(F = m \cdot a\)); thus, a larger mass requires a larger force for a given acceleration.
Question 17
Points: 1
Newton's second law of motion describes acceleration as net force divided by __________.
Explanation
Rearranging the formula \(F = m \cdot a\) gives \(a = F / m\), where acceleration equals net force divided by mass.
Question 18
Points: 1
In the diagram below, a box is on a frictionless horizontal surface with forces \(F_{1}\) and \(F_{2}\) acting shown. If the magnitude of \(F_{1}\) is greater than the magnitude of \(F_{2}\), then the box is
Explanation
Because there is a net unbalanced force in the direction of the larger force (\(F_{1}\)), the object must accelerate in that direction according to Newton's Second Law.
Question 19
Points: 1
If the net force acting on an object is doubled, the acceleration of the object is
Explanation
Acceleration is directly proportional to net force (\(a \propto F\)). Doubling the force results in doubling the acceleration.
Question 20
Points: 1
Is friction a force?
Explanation
Friction is a contact force that opposes the relative motion of two surfaces in contact.
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