Circular Motion

When an object is moving in a circle, in which direction does the acceleration point?

• toward the outside of the circle

• toward the center of the circle

• downward

• upward

Which represents the acceleration of the ball?

• A
• B
• C
• D

Which of the following depict the speed of the blowing ball?

• A
• B
• C
• D

Tags

NGSS.MS-PS3-1

Calculate the velocity of an object moved around a circle with a radius of 1.65 m and an acceleration of 3.5 m/s².

• 2.4 m/s
• 3.6 m/s
• 3.9 m/s
• 4.2 m/s

Calculate the mass of an object if it took 20 N to rotate it in a circle with a radius of 2 meters with a velocity of 4 m/s

• 4.1 kg
• 3.6 kg
• 2.5 kg
• 1.8 kg

Tags

NGSS.HS-PS2-1

Calculate the centripetal force required to make a 5 kg ball move 4 m/s in a circle with a radius of 2 m.

• 10 N
• 20 N
• 30 N
• 40  N

Tags

NGSS.HS-PS2-1

If the radius of the string is .3 meters long and the stopper makes 5 revolutions per second, what is the speed of the stopper? (Hint: C=2πr)

• 9.4 m/s
• 6.8 m/s
• 11.7 m/s
• 3.5 m/s

The time interval that it takes an object to travel around the entire circular path is called...

• a loop

• an interval

• a period

• a radian

The "apparent weight" of an object refers to the ___________ of the object.

• Normal Force

• Central Force

• Force due to gravity

• Tensional Force

Which scientist first derived the law of universal gravitation?

• Einstein

• Farraday

• Newton

• Gallileo