Centripetal Force And Acceleration Question Preview (ID: 49695)


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You swing a bucket of water attached to a string in a circle above your head. What keeps the water in the bucket?
a) friction
b) gravity
c) centripetal force
d) inertia

As the moon orbits the earth, what keeps the moon moving in a circular motion?
a) gravity
b) centripetal force
c) inertia
d) friction

When you're whirling a ball on a string, what SPECIFIC force keeps it moving in a circle?
a) The tension force.
b) The centrifugal force.
c) The centripetal force.
d) The friction force.

Why do you feel a centrifugal force if it isn't real?
a) Because your body wants to keep going in a straight line, as explained by Newton's 1st Law.
b) Because your body wants to keep moving in a circle, as explained by Newton's 1st Law.
c) Because your body wants to keep going in a straight line, as explained by Newton's 3rd Law.
d) Because humans have good imaginations.

What is the definition of centripetal force?
a) A force directed towards the center of a circle that keeps an object moving in a circle.
b) A force directed towards the outside of a circle that keeps an object moving in a circle.
c) A force directed towards the outside of a circle that you feel when going around a corner.
d) Any force acting on an object moving in a circle.

A cyclist turns a corner with a radius of 50m at a speed of 10m/s. What is the cyclist’s acceleration?
a) 2 m/s/s
b) 120 m/s/s
c) .5 m/s/s
d) 250 m/s/s

A 60 kg Gila monster on a merry-go-round is traveling in a circle with a radius of 3 m at a speed of 2m/s. What acceleration does the monster experience?
a) 5 m/s/s
b) 1.55 m/s/s
c) 1.33 m/s/s
d) 3.2 m/s/s

A cyclist turns a corner with a radius of 50m at a speed of 10m/s. If the cyclist and cycle have a combined mass of 120kg, what is the force causing them to turn?
a) 240 Newtons
b) .24
c) 60,000
d) 240 kg

Centripetal is a direction. it means: “directed to the_________ of a circle.”
a) outside
b) edges
c) ceneter
d)

A car makes a turn of radius 25 m while traveling at a constant speed of 15 m/s. What acceleration was required to make this turn?
a) 9 m/s2
b) .6 m/s2
c) 41.6 m/s2
d) 5625 m/s2

Where is the net force when the roller coaster is at the top of the loop?
a) towards the sky
b) towards the left
c) towards the right
d) towards the ground

This picture was taken form the International Space Station. Gravity keeps the space station in orbit.
a) true
b) false
c)
d)

As this ride starts to spin in a circular motion the swings move outward. What is the cause of this outward motion
a) gravity
b) centripetal force
c) speed
d) inertia

If centripetal force stopped acting on all satellites they would continue traveling in space in a constant direction and constant speed.
a) true
b) false
c)
d)

The centripetal force of satellites is similar to gravitational force because they are both a net force towards the center of earth.
a) true
b) false
c)
d)

Which of these is the best definition of centripetal forces?
a) forces that pull people together
b) forces that reduce land use conflict
c) forces that improve living standards
d) forces that promote urbanization

the process or act of turning or circling around something
a) curvature
b) rotation
c) radius
d) orbit

A horse gallops around a circular arena. The centripetal force on the horse is ___.
a) directed outward
b) tension
c) directed toward the center of the arena
d) 9.8N

A car traveling at 15 m/s on a flat surface turns in a circle with a radius of 25 m. What is the centripetal acceleration of the car?
a) 9.0 m/s2
b) 240 m/s2
c) 0.60 m/s2
d) zero

Which of the following units is used for tangential velocity?
a) m/s^2
b) m/s
c) J
d) N

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