A 5-kg concrete block is lowered with a downward acceleration of 2.8 m/s2 by means of a rope. The force of the block on the rope is:

A) 14 N, up B) 14 N, down C) 35 N, up D) 35 N, down E) 49 N, up A) 14 N, up B) 14 N, down C) 35 N, up D) 35 N, down E) 49 N, up

A short 10-g string is used to pull a 50-g toy across a frictionless horizontal surface. If a 3.0 *10-2-N force is applied horizontally to the free end, the force of the string on the toy, at the other end, is:

A) 0.15 N B) 6.0 *10-3 N C) 2.5* 10-2 N D) 3.0* 10-2 N E) 3.5 * 10-2 N A) 0.15 N B) 6.0 *10-3 N C) 2.5* 10-2 N D) 3.0* 10-2 N E) 3.5 * 10-2 N

When a certain force is applied to the 1-kg standard mass its acceleration is 5.0 m/s2. When the same force is applied to another object its acceleration is one-fifth as much. The mass of the object is:

A) 0.2 kg B) 0.5 kg C) 1.0 kg D) 5.0 kg E) 10 kg A) 0.2 kg B) 0.5 kg C) 1.0 kg D) 5.0 kg E) 10 kg

Exam 5: Force and Motion I

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A 70-N block and an 35-N block are connected by a string as shown. If the pulley is massless and the surface is frictionless, the magnitude of the acceleration of the 35-N block is:

(Multiple Choice)

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Question 41

The mass and weight of a body:

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Question 42

The inertia of a body tends to cause the body to:

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Question 43

A 5-kg concrete block is lowered with a downward acceleration of 2.8 m/s² by means of a rope. The force of the block on the rope is:

(Multiple Choice)

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Question 44

A book rests on a table, exerting a downward force on the table. The reaction to this force is:

(Multiple Choice)

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Question 45

Mass differs from weight in that:

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Question 46

Three books (X, Y, and Z) rest on a table. The weight of each book is indicated. The net force acting on book Y is:

(Multiple Choice)

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Question 47

A crane operator lowers a 16,000 N steel ball with a downward acceleration of 3 m/s². The tension in the cable is:

(Multiple Choice)

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Question 48

You stand on a spring scale on the floor of an elevator. Of the following, the scale shows the highest reading when the elevator:

(Multiple Choice)

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Question 49

A short 10-g string is used to pull a 50-g toy across a frictionless horizontal surface. If a 3.0 *10^-²-N force is applied horizontally to the free end, the force of the string on the toy, at the other end, is:

(Multiple Choice)

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Question 50

The unit of force called the newton is:

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Question 51

A ball with a weight of 1.5 N is thrown at an angle of 30 $\degree$ above the horizontal with an initial speed of 12 m/s. At its highest point, the net force on the ball is:

(Multiple Choice)

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Question 52

Acceleration is always in the direction:

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Question 53

Two blocks weighing 250 N and 350 N respectively, are connected by a string that passes over a massless pulley as shown. The tension in the string is:

(Multiple Choice)

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Question 54

Three blocks (A,B,C), each having mass M, are connected by strings as shown. Block C is pulled to the right by a force that causes the entire system to accelerate. Neglecting friction, the net force acting on block B is:

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Question 55

When a 25-kg crate is pushed across a frictionless horizontal floor with a force of 200 N, directed 20 $\degree$ below the horizontal, the magnitude of the normal force of the floor on the crate is:

(Multiple Choice)

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Question 56

Two blocks are connected by a string and pulley as shown. Assuming that the string and pulley are massless, the magnitude of the acceleration of each block is:

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Question 57

A sled is on an icy (frictionless) slope that is 30 $\degree$ above the horizontal. When a 40-N force, parallel to the incline and directed up the incline, is applied to the sled, the acceleration of the sled is 2.0 m/s², down the incline.. The mass of the sled is:

(Multiple Choice)

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Question 58

When a certain force is applied to the 1-kg standard mass its acceleration is 5.0 m/s². When the same force is applied to another object its acceleration is one-fifth as much. The mass of the object is:

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Question 59

The term "mass" refers to the same physical concept as:

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Question 60

Showing 41 - 60 of 68

Exam 5: Force and Motion I

A 70-N block and an 35-N block are connected by a string as shown. If the pulley is massless and the surface is frictionless, the magnitude of the acceleration of the 35-N block is:

The mass and weight of a body:

The inertia of a body tends to cause the body to:

A 5-kg concrete block is lowered with a downward acceleration of 2.8 m/s2 by means of a rope. The force of the block on the rope is:

A book rests on a table, exerting a downward force on the table. The reaction to this force is:

Mass differs from weight in that:

Three books (X, Y, and Z) rest on a table. The weight of each book is indicated. The net force acting on book Y is:

A crane operator lowers a 16,000 N steel ball with a downward acceleration of 3 m/s2. The tension in the cable is:

You stand on a spring scale on the floor of an elevator. Of the following, the scale shows the highest reading when the elevator:

A short 10-g string is used to pull a 50-g toy across a frictionless horizontal surface. If a 3.0 *10-2-N force is applied horizontally to the free end, the force of the string on the toy, at the other end, is:

The unit of force called the newton is:

A ball with a weight of 1.5 N is thrown at an angle of 30 °\degree° above the horizontal with an initial speed of 12 m/s. At its highest point, the net force on the ball is:

Acceleration is always in the direction:

Two blocks weighing 250 N and 350 N respectively, are connected by a string that passes over a massless pulley as shown. The tension in the string is:

Three blocks (A,B,C), each having mass M, are connected by strings as shown. Block C is pulled to the right by a force that causes the entire system to accelerate. Neglecting friction, the net force acting on block B is:

When a 25-kg crate is pushed across a frictionless horizontal floor with a force of 200 N, directed 20 °\degree° below the horizontal, the magnitude of the normal force of the floor on the crate is:

Two blocks are connected by a string and pulley as shown. Assuming that the string and pulley are massless, the magnitude of the acceleration of each block is:

A sled is on an icy (frictionless) slope that is 30 °\degree° above the horizontal. When a 40-N force, parallel to the incline and directed up the incline, is applied to the sled, the acceleration of the sled is 2.0 m/s2, down the incline.. The mass of the sled is:

When a certain force is applied to the 1-kg standard mass its acceleration is 5.0 m/s2. When the same force is applied to another object its acceleration is one-fifth as much. The mass of the object is:

The term "mass" refers to the same physical concept as:

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A 5-kg concrete block is lowered with a downward acceleration of 2.8 m/s² by means of a rope. The force of the block on the rope is:

A crane operator lowers a 16,000 N steel ball with a downward acceleration of 3 m/s². The tension in the cable is:

A short 10-g string is used to pull a 50-g toy across a frictionless horizontal surface. If a 3.0 *10^-²-N force is applied horizontally to the free end, the force of the string on the toy, at the other end, is:

A ball with a weight of 1.5 N is thrown at an angle of 30 $\degree$ above the horizontal with an initial speed of 12 m/s. At its highest point, the net force on the ball is:

When a 25-kg crate is pushed across a frictionless horizontal floor with a force of 200 N, directed 20 $\degree$ below the horizontal, the magnitude of the normal force of the floor on the crate is:

A sled is on an icy (frictionless) slope that is 30 $\degree$ above the horizontal. When a 40-N force, parallel to the incline and directed up the incline, is applied to the sled, the acceleration of the sled is 2.0 m/s², down the incline.. The mass of the sled is:

When a certain force is applied to the 1-kg standard mass its acceleration is 5.0 m/s². When the same force is applied to another object its acceleration is one-fifth as much. The mass of the object is: