Physics

Grade-10

Easy

Question

# What is the centripetal acceleration for an object of mass 50 Kg with the following specifications moving in a uniform circular motion.

Distance between the object and the axis point is 30 m. Object’s speed is 30 m/s. The acceleration of the object is ____.

- 0 m/s
^{2} - less than 50 m/s
^{2} - 50 m/s
^{2} - more than 50 m/s
^{2}

^{2}^{2}^{2}^{2}Hint:

## The correct answer is: less than 50 m/s^{2}

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### A car travels at a constant speed around a horizontal circular track. Which diagram correctly represents the direction of v and F_{c} acting on the car at a particular moment?

### A car travels at a constant speed around a horizontal circular track. Which diagram correctly represents the direction of v and F_{c} acting on the car at a particular moment?

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### Which law determines the direction of an object’s acceleration as it is moving in uniform circular motion?

- Newton’s first law of motion
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### Which law determines the direction of an object’s acceleration as it is moving in uniform circular motion?

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- Newton’s first law of motion
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- Newton’s third law of motion
- Universal law of motion

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### Which law determines the direction of an object’s velocity as it is moving in uniform circular motion?

- Newton’s first law of motion
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### Which law determines the direction of an object’s velocity as it is moving in uniform circular motion?

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- Newton’s first law of motion
- Newton’s second law of motion
- Newton’s third law of motion
- Universal law of motion

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

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

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- In the same direction as the motion of the object.
- In the opposite direction of the motion of the object.
- Towards the center of the circular path.
- Away from the center of the circular path.

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### An object moves in a circular path at a constant speed. Compare the direction of the object’s velocity and acceleration.

- Both are in the same direction
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### An object moves in a circular path at a constant speed. Compare the direction of the object’s velocity and acceleration.

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- Both are in the same direction
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### Which of these is the unit for centripetal force?

- J
- N
- W
- Ergs

### Which of these is the unit for centripetal force?

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- J
- N
- W
- Ergs

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### Centripetal acceleration is ___.

- Acceleration towards the center of a curved or a circular path.
- Acceleration towards the outside of a circle
- Vertical motion
- Horizontal motion

### Centripetal acceleration is ___.

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- Acceleration towards the center of a curved or a circular path.
- Acceleration towards the outside of a circle
- Vertical motion
- Horizontal motion

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### Centripetal acceleration always points:

- Away from the centre of the circle formed by the uniform circular motion.
- Towards the center of the circle formed by the uniform circular motion.
- In the tangential direction of the center of the circle formed by the uniform circular motion.
- In the direction of object’s motion

### Centripetal acceleration always points:

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- Away from the centre of the circle formed by the uniform circular motion.
- Towards the center of the circle formed by the uniform circular motion.
- In the tangential direction of the center of the circle formed by the uniform circular motion.
- In the direction of object’s motion

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### The velocity of an object moving in a circular path is always ________ to the line of a circle.

- Outwards
- Towards the center
- Tangential
- Radial

### The velocity of an object moving in a circular path is always ________ to the line of a circle.

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- Outwards
- Towards the center
- Tangential
- Radial

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### Which of the following depicts the speed of the ball moving in a uniform circular path?

- A
- B
- C
- D

### Which of the following depicts the speed of the ball moving in a uniform circular path?

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- A
- B
- C
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### Which represents the acceleration of the ball moving in a uniform circular path.

- A
- B
- C
- D

### Which represents the acceleration of the ball moving in a uniform circular path.

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- A
- B
- C
- D

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### On which factor does the centripetal force not depend?

- Object’s mass
- Object’s shape
- Object’s speed
- Distance between the object and the axis point

### On which factor does the centripetal force not depend?

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- Object’s mass
- Object’s shape
- Object’s speed
- Distance between the object and the axis point

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### What is the angle between the velocity vector and the centripetal force?

- 0 degree
- Less than 90 degrees
- 90 degrees
- More than 90 degrees

### What is the angle between the velocity vector and the centripetal force?

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- 0 degree
- Less than 90 degrees
- 90 degrees
- More than 90 degrees

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### Which Newton’s law is responsible for centripetal force?

- Newton’s first law of motion
- Newton’s second law of motion
- Newton’s third law of motion
- Universal law of motion

### Which Newton’s law is responsible for centripetal force?

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- Newton’s first law of motion
- Newton’s second law of motion
- Newton’s third law of motion
- Universal law of motion

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### Centripetal force points towards the:

- Outside of the circle
- Centre of the circle
- Boundary of the circle
- Tangential to the circle

### Centripetal force points towards the:

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- Outside of the circle
- Centre of the circle
- Boundary of the circle
- Tangential to the circle