Chapter 2: Forces Reinforcement Quiz
10 Questions
| Total Attempts: 62
Forces
Questions and Answers
- 1.Friction acts in a direction __________ to the direction of an object's motion
- A.
Unrelated
- B.
Opposite
- C.
Equal
- D.
Perpendicular
- 2.A (n) ______________ can cause an objects motion to change
- A.
Unbalanced force
- B.
Balanced force
- C.
Inertia
- D.
Mass
- 3.Jake and Tom want to see who is strogest, so they got a rope and decided to play tug-o-war. Both boys pulled at the rope with all of their strength, but neither of them moved. Since neither was able to move the other. These forces are said to be unbalanced.
- A.
True
- B.
False
- 4.Which of the following is a helpful increase in friction?
- A.
Adding chains to tires in the winter time for better traction in the snow and ice
- B.
Adding Salt to and icy sidewalk
- C.
Adding oil to a car's engine
- D.
Using wheels on a cart
- 5.Which of the following would be a harmful affect of friction?
- A.
Using brakes to stop your bicycle.
- B.
Sliding across the rug and getting a rug burn on your leg.
- C.
Rubbing your hands together to keep them warm
- D.
Using the eraser on your pencil to correct your test mistake
- 6.Frictional forces act in the same direction as the motion of the object.
- A.
True
- B.
False
- 7.A hockey puck is sliding across the ice. Friction would be acting to increase the speed of the puck.
- A.
True
- B.
False
- 8.On which type of surface would a soccer ball roll the farthest?
- A.
Sandy Beach
- B.
Grassy Lawn
- C.
Carpeted Floor
- D.
Marble Floor
- 9.Which of the following statements are true? Choose all that apply.Frictional forces are increased when
- A.
Increased force is added to press the objects closer together.
- B.
Surfaces objects are smoother
- C.
Surfaces of the objects are rougher
- D.
Wheels are added to one of the objects in contact with the other.
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