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1. Concurrent forces act at

(a) Two or more different points.

(b) The same point.

(c) The origin.

2. The resultant force is

(a) The last force applied.

(b) The single force that has the same effect as two or more forces acting together.

(c) Equal to either diagonal when using the parallelogram method to add vectors.

3. A moving object

(a) Can be in equilibrium.

(b) Is never in equilibrium.

(c) Has no force being applied.

4. The study of an object in equilibrium is called

(a) Dynamics.

(b) Astronomy.

(c) Statics.

(d) Biology.

5. Torque is

(a) Applied force in rotational motion.

(b) The length of the torque arm.

(c) Applied force times the length of the torque arm.

(d) None of the above.

6. The first condition of equilibrium states that

(a) All parallel forces must be zero.

(b) All perpendicular forces must be zero.

(c) All frictional forces must be zero.

7. In the second condition of equilibrium,

(a) Clockwise and counterclockwise torques are unequal.

(b) Clockwise and counterclockwise torques are equal.

(c) There are no torques.

8. The center of gravity of an object

(a) Is always at its geometric center.

(b) Does not have to be at the geometric center.

(c) Exists only in symmetrical objects.

(a) Two or more different points.

(b) The same point.

(c) The origin.

2. The resultant force is

(a) The last force applied.

(b) The single force that has the same effect as two or more forces acting together.

(c) Equal to either diagonal when using the parallelogram method to add vectors.

3. A moving object

(a) Can be in equilibrium.

(b) Is never in equilibrium.

(c) Has no force being applied.

4. The study of an object in equilibrium is called

(a) Dynamics.

(b) Astronomy.

(c) Statics.

(d) Biology.

5. Torque is

(a) Applied force in rotational motion.

(b) The length of the torque arm.

(c) Applied force times the length of the torque arm.

(d) None of the above.

6. The first condition of equilibrium states that

(a) All parallel forces must be zero.

(b) All perpendicular forces must be zero.

(c) All frictional forces must be zero.

7. In the second condition of equilibrium,

(a) Clockwise and counterclockwise torques are unequal.

(b) Clockwise and counterclockwise torques are equal.

(c) There are no torques.

8. The center of gravity of an object

(a) Is always at its geometric center.

(b) Does not have to be at the geometric center.

(c) Exists only in symmetrical objects.

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