Friction and Tension

To make something to move, you need to ____

• Apply Force

• Apply Colour

• Apply Speed

• Apply Information

What force pulls the oud strings when tuning them up?

• Gravity

• Magnetic force

• Drag

• Tension

Which force keeps the boy from falling?

• Tension of the rope

• Gravity of the Earth

• Electrostatic force of his phone

• Friction of the air

Which force keeps the boy from falling?

• Tension of the rope

• Gravity of the Earth

• Electrostatic force of his phone

• Friction of the air

Which floor has MORE friction?

• Dry floor

• Wet floor

Contact forces act through ____

• Touch

• Vacuum

• Electric field

• Magnetic field

When you rub your hands against each other, they become hot. This happens because of _

• Mass

• Friction

• Torsion

• Tension