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اختبار إلكتروني: Centripetal Force Physics Assessment

Centripetal force is the inward force required to maintain an object's circular motion, acting perpendicular to its velocity and directed toward the center of the path. Its magnitude is determined by the object's mass, its speed, and the radius of the circular path according to the physical law \( F_c = \frac{mv^2}{r} \). This assessment explores these relationships through conceptual questions and practical calculations, such as determining the force on a rotating ball or calculating the required radius for a road turn based on safety acceleration limits. Understanding these principles is essential for engineering, aeronautics, and basic physics mechanics.
رقم الاختبار 798
الصف الصف الثاني عشر المتقدم
المادة فيزياء
الفصل الفصل الثالث
السنة الدراسية 2025/2026
عدد الأسئلة 7
إجمالي النقاط 7
تاريخ الإضافة 2026-04-19
الزيارات 24
المعلم أو الناشر Amal 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
A horse gallops around a circular arena. The centripetal force on the horse is ___.
Question 2
Points: 1
Which of the following increase the centripetal force?
Question 3
Points: 1
Calculate the amount of centripetal force it takes for a softball pitcher to rotate a ball with a velocity of 3 m/s if the ball weighs .12 kg and her arm is .65 meters long.
Question 4
Points: 1
A bola is an old hunting instrument. If three rocks with a combined mass of 0.75 kg are spun at a speed of 20 m/s with a radius of 0.5 m, how much centripetal force is required to keep them spinning.
Question 5
Points: 1
An engineer is planning a road with a turn. If the speed limit is 20 m/s and the centripetal acceleration cannot exceed 8.5 m/s/s, how big must the radius of the turn be?
Question 6
Points: 1
A car with mass m travels around a curve with velocity v. What do you know about the centripetal force if the velocity triples?
Question 7
Points: 1
A car with mass m travels around a curve with velocity v. What do you know about the centripetal force if the radius triples?

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