Write T if the statement is true and F if the statement is false, underline the words that make it false and write your answer in your activity notebook.

1. Sliding friction occurs when two objects rub againts each other or slide againts each other.

2. The greatest friction shows on a polished floor or smooth surface.

3. More force is needed to pull the block of wood when friction is greater.

4. Sliding Friction acts in a direction opposite the direction of motion.

5. The rougher the surface,the faster an object will move over the surface.​​


Sagot :

FRICTION

1. Sliding friction occurs when two objects rub againts each other or slide againts each other.

  • TRUE. Friction happens when objects slides or rubs each other.

2. The greatest friction shows on a polished floor or smooth surface.

  • FALSE. There are less friction in smooth surfaces.

3. More force is needed to pull the block of wood when friction is greater.

  • TRUE. The greater the friction, the greater the force needed to move an object.

4. Sliding Friction acts in a direction opposite the direction of motion.

  • TRUE. Friction is a force that opposes the direction motion of a certain object.

5. The rougher the surface, the faster an object will move over the surface.

  • FALSE. The rougher the surface, the slower an object will move over the surface.