حل الأداء الصفي وواجب وتقييم الأسبوع الخامس والسادس والسابع ساينس للصف الثالث الإعدادي ترم أول 2026

يوفر مدرسو مادة العلوم لغات الإجابات عن الأداءات والتقييمات الأسبوعية، ومنها حل الأداء الصفي وواجب وتقييم الأسبوع الخامس والسادس والسابع ساينس للصف الثالث الإعدادي ترم أول 2026، والذي ينشره موقع «شبابيك» خلال السطور التالية لمساعدة الطلاب على معرفة الإجابات الصحيحة والنموذجية.

حل الأداء الصفي وواجب وتقييم الأسبوع الخامس والسادس والسابع ساينس للصف الثالث الإعدادي ترم أول 2026

يشمل حل الأداء الصفي وواجب وتقييم الأسبوع الخامس والسادس والسابع ساينس للصف الثالث الإعدادي ترم أول 2026 عدد كبير من الأسئلة والتي أجاب عنها المدرسون، ومن بين الأسئلة والإجابات كات الآتي:

Give reasons for: 1- A convex mirror is placed at the corners of narrow roads Because it forms a virtual minimized image so it gives wider view for the road
Give reasons for: 2- The incident light ray which falls perpendicular on a reflecting surface reflects on itself.. Bec angle of incidence = angle of reflection = zero
Give reasons for: 3- Many people cannot write while looking at their writing in a flat mirror. Bec the image formed by the plane mirror is always laterally inverted ( reversed )
Give reasons for...? 1- The image formed by a plane mirror and a convex mirror cannot be received on a barrier. Because convex & plane mirrors always form virtual images
Give reasons for...? 2- The word ambulance is written in reverse on the front of the ambulance. To be seen laterally corrected by the drivers
Give reasons for...? 6- Concave mirrors are used in the manufacture of solar ovens. Bec concave mirrors are converging so they collect light rays and generate heat
Give reasons for...? 8- No image of the object is formed when placed at the focus of a concave mirror. Because all reflected light rays are parallel
What happens when...? 2- A light ray falls parallel to the principal axis of the concave mirror. Reflects passing through the focus(F)
What happens when...? 3- A light ray falls on the surface of a concave mirror passing through its focal point. Reflects Parallel to the principle axis
What happens when...? 4- A light ray falls on the surface of a concave mirror passing through the centre of curvature. Reflects back on itself (Angle of incidence = Angle of reflection = Zero)
What is meant by: Reflection of light It is the rebounding (returning back) of light waves in the same medium on meeting a reflecting surface
What is meant by: Concave mirror It is the mirror whose reflecting surface is a part of the inner surface sphere
What is meant by: Convex mirror It is the mirror whose reflecting surface is a part of the outer surface sphere
What does it mean that .....? 1- Angle of reflection = 30° This means angle between reflected ray and the normal is 30°
What does it mean that .....? 3- Radius of curvature of the mirror = 10 cm. This means distance between pole of the mirror and centre of curvature = 10 cm