Revise smart, understand Better

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Revise smart, understand Better

Dynamics: Newton’s Laws of Motion
ELECTRICITY: Current
ELECTRICITY: Current
ELECTRICITY: Resistance
Elasticity
Electric fields
Electromagnetism
Electromagnetism
Energy: Application And Uses
Experimental physics
Forces
Gravitational fields
Heat
Kinematics in Two Dimensions: Vectors, projectiles
Kinematics in one dimension
Linear Momentum
MOTION
MOTION
MOTION
MOTION
MOTION
MOTION: Circular
MOTION: Collision
MOTION: Inclined plane
MOTION: Simple harmonic motion (SHM)
Magnetism
Optics
PLASTICS
PRESSURE
Radioactivity
TEMPERATURE
The Laws of Thermodynamics
Units System
Units System
Units, dimensions and homogeneity
WAVES: Electromagnetic
WAVES: Electromagnetic
WAVES: Sound

5/29 MCQs for:

MOTION: Circular

When an object experiences uniform circular motion, the direction of the net force is:

In the opposite direction of the motion of the object.

In the same direction as the motion of the object.

Is directed away from the center of the circular path.

Is directed toward the center of the circular path.

When an object experiences uniform circular motion, the direction of the acceleration is:

Is directed toward the center of the circular path.

Is directed away from the center of the circular path.

In the same direction as the velocity vector.

In the opposite direction of the velocity vector.

What is the centripetal acceleration of a point on the perimeter of a bicycle wheel of diameter 70 cm when the bike is moving 8.0 m/s?

1.8 x 10² m/s².

2.7 x 10² m/s².

2.1 x 10² m/s².

91 m/s².

A car goes around a curve of radius r at a constant speed v. Then it goes around the same curve at half of the original speed. What is the centripetal force on the car as it goes around the curve for the second time, compared to the first time?

Four times as big.

One-fourth as big.

Twice as big.

Half as big.

A motorcycle has a mass of 250 kg. It goes around a 13.7 m radius turn at 96.5 km/h. What is the centripetal force on the motorcycle?

1.31 x 104 N.

2.95 x 103 N.

719 N.

4.31 x 104 N.