Friction Worksheet-6

Friction Worksheet-6

1. The two common forces that are acting everywhere around us are ________.

(a) Gravity and friction

(b) Friction and magnetic forces

(c) Gravity and magnetic forces

(d) Electrostatic force and gravity.

2. When friction is acting in the direction of P, in which direction do you think the force is applied?

(a) P                    (b) Q                   (c) R                    (d) S

3. A cube was placed on a ramp as shown in the picture.

The box remains on the ramp and does not slide down. This is because ______.

(a) The box is too heavy to slide down

(b) The box does not have enough energy to slide down the ramp

(c) The force of gravity cannot act on the box while it stands at the top of the ramp

(d) The pull of gravity cannot overcome the force of friction acting between the box and the ramp.

4. Select the correct statement.

(a) Limiting friction is the minimum value of static friction

(b) Rolling friction is more than sliding friction

(c) Static friction is a self adjusting force

(d) None of these

5. Match the two columns and select the correct option from the codes given below.

(a) (A)-(I), (B)-(III), (C)-(II)

(b) (A)-(II), (B)-(I), (C)-(III)

(c) (A)-(III), (B)-(II), (C)-(I)

(d) (A)-(I), (B)-(II), (C)-(III)

Answer Key:

(1)-(a); (2)-(c); (3)-(d); (4)-(c); (5)-(a)