Circular Motion and Gravitation Quizizz

A ball is tied to the end of a string and swung in a circle. What force keeps the ball from flying off on a tangent?

• Gravity

• Normal

• Tension

• Friction

• Applied

A car is traveling around a curve. What force keeps the car from sliding off on a tangent?

• Gravity

• Normal

• Tension

• Friction

• Applied

A satellite is orbiting the Earth. What force keeps the satellite from floating off on a tangent?

• Gravity

• Normal

• Tension

• Friction

• Applied

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

A person is standing on the inside wall of a rotating circular space station. What force keeps the person from floating off on a tangent?

• Gravity

• Normal

• Tension

• Friction

• Applied

Suppose you're on a Ferris wheel at a carnival, seated 10 m from the Ferris wheels axis. If you make a complete rotation each minute, your linear speed is

• 10 m/min

• 62.8 m/min

• 31.4 m/min

• 100 m/min

• not enough information is given

Consider a string with several rocks tied along its length at equally spaced intervals. You whirl the string overhead so that the rocks follow circular paths. Compared to a rock in the middle of the string, a rock at the outer end moves

• Faster

• slower

• at the same linear speed

• not enough information given

Suppose the circumference of a bicycle wheel is 2 meters. If it rotates at 1 revolution per second when you are riding the bicycle, then your speed will be

• 3 m/s

• 2 m/s

• 1 m/s

• 3.14 m/s

• 6.28 m/s

Tags

NGSS.MS-PS3-1

Consider a rotating donut-shaped space habitat where living quarters are on the inside surface farthest from the axis. If the rotational speed of the habitat increases, the apparent weight of people inside

• Is always zero

• Decreases

• Increases

• Stays the same

Tags

NGSS.HS-PS2-1

Horses that move with the fastest linear speed on a merry-go-round are located

• near the outside

• near the center

• anywhere, because they all move at the same speed

Tags

NGSS.MS-PS3-1

The gravitational field best suited for humans living in an outer space colony is

• three-quarters g

• g

• one-half g

• zero

• one-quarter g

Tags

NGSS.HS-PS2-4