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Science Module 2 Test Reveiw
| Questions |
Answers |
| If you try to slide two objects past each other, a small amount of force will result in no motion. The force of friction is greater than the applied force. |
Static Friction |
| You do not need to apply quite as much force to keep the object sliding as you needed to break free of static friction originally. |
Kinetic Fiction |
| When we walk, we push back against the ground allowing us to move forward. Without friction, our feet would slip, and walking would be impossible. |
Helpful Friction |
| We need friction between car tires and the road for the car to travel the road safely, but prolonged friction results in worn-out tires. |
Harmful Friction |
| A center-directed force that continuously changes the direction of an object to make it move in a circle. |
Centripetal Force |
| the force perpendicular to the velocity of an object moving along a curved path. |
Centripetal Force |
| Galileo became intrigued with the pendulum by watching the movement of a swinging chandelier in a Pisa cathedral. |
Pendeuum |
