Motion in a circle
Grade 11 Science Worksheet - Building Confidence
Circle the best answer, or write your answer on the line.
A cart runs around a circular track of radius 3 m at a steady 6 m/s. What is its acceleration toward the center, Ari?
A cart runs around a circular track of radius 2 m at a steady 8 m/s. What is its acceleration toward the center, Esme?
In the diagram, which way does the ball's velocity point, Jun?
- Away from the center
- Toward the center
- Along the circle, at right angles to the string
In the diagram, which way does the net force on the ball point, Kira?
Use the picture in question 3.
- Along the velocity
- Away from the center, flinging it out
- Toward the center
In the diagram, what is the ball's acceleration toward the center, Luz?
Use the picture in question 3.
- 20 m/s²
- 5 m/s²
- 3.2 m/s²
A cart runs around a circular track, held in by an outer rail. What provides the force toward the center, Milo?
- Gravity pulling it down
- An outward push from its speed
- The rail's push on its wheels
A model satellite circles a planet. What provides the force toward the center, Pia?
- The planet's gravity
- The satellite's engines
- No force, since it is in space
A ball whirling on a string is let go when the string snaps. Which way does it go, Ren?
- On around the curve
- Straight out from the center
- Straight along the line it was moving
A cart on a circular track reaches a gap in the outer rail. What does it do, Tala?
- Leaves in a straight line along its velocity
- Keeps curving around
- Stops at once
Why does an object need a force to move in a circle at a steady speed, Zee?
- Its direction keeps changing
- It doesn't: steady speed needs no force
- Its speed keeps growing