Circular Motion

What object experiences uniform circular motion?

• A car speeding up as it turns left
• A car traveling around a roundabout at a constant speed
• A car slowing down as it crests a tall hill
• A car traveling down the road at a constant speed

Objects moving with constant speed in a circular path experience

• constant motion
• linear acceleration
• angular acceleration
• centripetal acceleration

The time taken for one complete circuit is called the... 

• Period
• Frequency 
• Angular velocity

Which represents the acceleration of the ball?

• A
• B
• C
• D

Tags

NGSS.HS-PS2-1

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

Tags

NGSS.HS-PS2-1

The moment of inertia:

• is synonymous with mass
• does not depend on where the mass is located
• resistance to a change in rotational inertia
• more resistance to change = less inertia

The property of a body to resist change in motion.

• mass
• weight
• volume
• inertia

Tags

NGSS.HS-PS2-1

Find the magnitude of the torque produced by a 22.0 N force applied to a door at a 30 degree from the perpendicular distance of  .005 km from the hinge.

• 55 Nm
• .015 Nm
• 6.3 Nm
• 8.75 Nm

If the torque required to loosen a nut on the wheel of a car has a magnitude of 85.0 N• m, what minimum 65 degrees from the perpendicular force must be exerted by a mechanic at the end of a 22.0 cm wrench to loosen the nut?

• 426.3 N
• 2.314 N
• 35 N
• 3500 N