1) What enables you to run? a) energy b) food c) radio d) strength 2) How does light travel? a) wavy line b) circular motion c) crooked line d) straight line 3) What object gives heat and light through electricity? a) campfire b) flatiron c) laptop d) electric fan 4) What is formed when an object blocks a light source? a) a shadow b) pollution c) moonlight d) luminous object 5) What kind of energy that is produced when objects move back and forth? a) heat energy b) light energy c) sound energy d) noise 6) What characteristic of sound tell you how low or high sound is? a) volume b) noise c) pitch d) vibration 7) What characteristic of sound tell you how loud or soft sound is? a) volume b) sound c) pitch d) vibration

Unit 2

بواسطة
طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟