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

• A

• B

• C

• D

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which represents the acceleration of the ball?

• A

• B

• C

• D

Tags

NGSS.MS-PS2-2

Other than gravity what is the other force that is contributing to the net force of the coaster at the top of the loop?

• Tension Force

• Friction Force

• Centripetal Force

• Normal Force

Tags

NGSS.HS-PS2-1

In the equation \(s=\theta r,\ \ \theta\ represents...\)

• Angular velocity measured in radians

• The central angle measured in degrees

• The central angle measured in revolutions

• The central angle measured in radians

Why are you more stable when riding a bicycle at a faster speed?

• You have more mass

• The wheels have angular momentum

• It's not easier to ride at a faster speed

• The bike has more momentum

Tags

NGSS.MS-PS3-1

What happens to her angular velocity when a figure skater brings in her arms?

• Increases her angular velocity

• Decreases her angular velocity

• Has no affect

What is happening to the ice skater?

• Decreased Angular velocity, decreased rotational inertia

• Decreased Angular velocity, increased rotational inertia

• Increased Angular velocity, increased rotational inertia

• Increased Angular velocity, decreased rotational inertia

A state of equilibrium is also seen below. Each of the cars weighs the same 9800 N. Despite the fact that there is only one car on the left-hand side that is 9 m from the fulcrum, the torques balance because, the cars on the right-hand side, are ____meters from the fulcrum.

• 4.5 m

• 3 m

• 1 m

• 2 m

Tags

NGSS.MS-PS2-4

Angular Momentum is the product of...

• rotational inertia and linear velocity.

• linear inertia and angular velocity.

• linear momentum and angular velocity

• rotational inertia and angular velocity.

Which has the greater angular velocity?

• A

• B