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1. Where is gravitational force directed as you stand on the floor?
A upward
C. backward
B. forward
D. downward
2. Which of the following shows the presence of friction?
A cars continuously roll down hills
B. things fall off on smooth surfaces
C. people stay in place as they move
D. cors stop when the driver steps on the brakes
3. What is the direction of the frictional force that acts on an object moving
to the left?
A Upword
C. to the right
B.Downward
D. to the left olsó
4. Which of the following stotements is not true about friction?
A. it acts upward opposing the pull of gravity
B. it prevents things from sliding off surfaces
C. It keeps things that cre in contact with each other
D. it holds objects that are separated by the great distance
5. A delivery mon uses wooden ramp when he delivers thus, packages do not
side off easily making his work take longer, What would be the best way to
make the packages slide easily?
A make his wooden ramp wider
B. Use water on his wooden ramp
C. use a sandpaper to polish and smoothen his ramp
D. make his wooden ramp narrower
ning on the object described in each​