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WorksheetsSpecific Forces
Total questions: 14
Worksheet time: 7mins
A child is riding his bike along a path. Once the child stops pedaling, the bike begins to slow down. What force caused the bike to change its motion?
Buoyancy
Gravity
Centripetal Force
Friction
What direction does friction always act?
Up
Down
Side to side
Against the direction of motion
An example of ROTATION is:
a basketball spinning on the end of a finger
a race car going around a race track
earth moving in its orbit around the sun
a kid on a marry go round
The source of the centripetal force that allows a race car to go around the turn on a race track is:
gravity
friction
buoyancy
inertia
Variables or factors that affect the amount of centripetal force on an object moving in a circle include all of the following except:
speed of the object
distance/radius of the revolution/orbit
mass of the object
the direction- clockwise or counterclockwise
The direction of centripetal force is always directed in what direction?
Up
Down
Towards the center of the circle
Across
The force of gravity is greater between 2 objects who are:
farther away from each other
more massive
less massive
green and white
Examples of centripetal force include all of the following except:
gravity of the sun acting to keep Earth in orbit.
the door of a car pushing on a passenger as the car rounds a corner.
the friction on a car as it accelerates down a straight street.
the force of the air pushing on the wings of a plane as it makes a turn.
The measure of the upward force applied by a fluid on an object is called:
density
weight
volume
buoyancy
An object has a weight of 2.5 Newtons when suspended by a string attached to a spring scale. When the object, still suspended from the string, is held in a container of water without touching the sides of bottom of the container, the weight is 1.5 Newtons. The magnitude of the buoyant force of the water is _______ Newtons.
1.0
1.7
3.8
4.0
A submarine will accelerate (move) towards the surface of the water if:
The force of buoyancy is less than the force of gravity.
The force of buoyancy is equal to the force of gravity.
The force of buoyancy is greater than the force of gravity.
A submarine will not change its motion if:
Gravity is greater than buoyancy.
Buoyancy is greater than gravity.
Buoyancy is equal to gravity.
Your weight will be the greatest:
On the smallest planet.
On the largest planet.
On Earth.
Weight never changes.
The source of the centripetal force that allows the moon to orbit the Earth is:
Inertia
Momentum
Gravity
Friction
