Science E - MIDTERM S.II 23-24

1. The ____________produces sound waves.

• Vibration
  

• Undulation

Elephants warn each other by ______

• stamping their feet

• soundwaves

are the types of medium that sound can travel through.

• SOLID,LIQUID and GAS

• LIQUID and GAS

• SOLID and GAS

• SOLID and LIQUID

The light travels much faster than sound.

• Correct

• Wrong

Sound travels the slowest through __ medium and travels fastest in __ medium

• GAS/SOLID

• SOLID/GAS

Sound travels at ______________ m/s in air.

• 500
• 250
• 700
• 340

Sound travels at ______________ m/s in liquid.

• 200

• 1200

• 500

• 1500

Sound travels at ______________ m/s in solid.

• 340

• 1500

• 5000

• 12000

Light can travel through vacuum. It doesn’t need a medium to travel through.

• Wrong

• Correct

You can hear the thunder first before you see the lightning.

• Wrong

• Correct