B. Read each question and write the letter of your answers in your notebook.
5. The situation that will help reduce frictional force.
A Tearing of bike gears
B. Applying lubricants to tires
C. Rubbing together two hard objects
D. Sliding big boxes on the ramp from the truck
6. When there is friction between moving parts of machine is produced
A. Heat
B. Light
C. Oil
D. Speed
7. Friction is a force that acts in the direction of the intended motion of an object.
A. Northern B. Opposite
C. Parallel
D. Southern
8.
is a force of attraction that pulls together all matter
A. Energy B. Force
C. Resistance D. Gravity
9. Which force always pulls objects downward?
A. Gravity B Alr Resistance C. Friction Force D Support force
10. What force will be used by the brakes to stop a bike?
A Friction
B Gravity
C. Magnetism
D. Pitch​