Question 1

In straight-line motion, if a moving object slows down, the direction of the acceleration is ______________ the direction of the velocity.

Accepted Answer

opposite t

Question 2

An object that is moving in a linear path with an acceleration in the direction opposite to the motion has a(n) ______________ velocity.

Accepted Answer

A)  constant 
B)  increasing 
C)  decreasing 
D)  none of these 
A)  constant 
B)  increasing 
C)  decreasing 
D)  none of these

Question 3

A golfer hits a ball on a level fairway at an angle of 30° relative to the horizontal, and it lands on the green. Another golfer hits a ball with the same speed but at an angle of 60°, and it lands on the green by the other ball. Which statement is accurate for this situation?

Accepted Answer

A)  One ball is in the air longer than the other. 
B)  One ball experiences a greater acceleration while in free flight. 
C)  One ball experiences a smaller acceleration while in free flight. 
D)  Two balls hit at the same speed but different angles will always land in the same location. 
E)  Two balls hit at the same speed but different angles can never land in the same location. 
A)  One ball is in the air longer than the other. 
B)  One ball experiences a greater acceleration while in free flight. 
C)  One ball experiences a smaller acceleration while in free flight. 
D)  Two balls hit at the same speed but different angles will always land in the same location. 
E)  Two balls hit at the same speed but different angles can never land in the same location.

Question 4

A stone is dropped from the top of a well that has water in it at a depth of 30.0 m. How long does it take the stone to reach the water?

Accepted Answer

The answer of A stone is dropped from the top...

Question 5

An object that is moving with an acceleration different from zero will always have a(n) ______________ velocity.

Accepted Answer

A)  changing 
B)  increasing 
C)  constant 
D)  decreasing 
A)  changing 
B)  increasing 
C)  constant 
D)  decreasing

Question 6

The distance traveled by an automobile moving at a constant velocity is

Accepted Answer

A)  directly proportional to the time. 
B)  directly proportional to the time squared. 
C)  inversely proportional to the time squared. 
D)  inversely proportional to the time. 
E)  none of these 
A)  directly proportional to the time. 
B)  directly proportional to the time squared. 
C)  inversely proportional to the time squared. 
D)  inversely proportional to the time. 
E)  none of these

Question 7

Physics deals with matter, motion, force, and ______________.

Accepted Answer

The answer of Physics deals with matter, motion, force, and...

Question 8

In straight-line motion, if a moving object speeds up, the direction of the acceleration is ______________ the direction of the velocity.

Accepted Answer

along, the

Question 9

A ball is thrown up in the air with an initial velocity of 58.8 m/s upward. How long does it take the ball
a. to go up?
b. to come down after reaching maximum height?

Accepted Answer

The answer of A ball is thrown up in the...

Question 10

The magnitude of the acceleration of an object moving in a circle at constant speed is

Accepted Answer

A)  inversely proportional to the speed squared. 
B)  inversely proportional to the speed. 
C)  inversely proportional to the radius of the circle squared. 
D)  inversely proportional to the radius of the circle. 
A)  inversely proportional to the speed squared. 
B)  inversely proportional to the speed. 
C)  inversely proportional to the radius of the circle squared. 
D)  inversely proportional to the radius of the circle.

Question 11

A rifle bullet shot horizontally at a velocity of 9.8 m/s has a horizontal acceleration of ______________.

Accepted Answer

The answer of A rifle bullet shot horizontally at a...

Question 12

A continuous change in position is called ______________.

Accepted Answer

The answer of A continuous change in position is called...

Question 13

Under ideal conditions, a projectile with a given initial speed at an angle of 15° has the same range as a projectile at an angle of ______________ with the same initial speed.

Accepted Answer

The answer of Under ideal conditions, a projectile with a...

Question 14

Which of the following statements is not true?

Accepted Answer

A)  Displacement has a direction and a magnitude. 
B)  Acceleration has a magnitude only. 
C)  Speed has a magnitude only. 
D)  Velocity has a magnitude and a direction. 
A)  Displacement has a direction and a magnitude. 
B)  Acceleration has a magnitude only. 
C)  Speed has a magnitude only. 
D)  Velocity has a magnitude and a direction.

Question 15

Because of air resistance, an object falling a great distance may reach a ______________ velocity.

Accepted Answer

The answer of Because of air resistance, an object falling...

Question 16

A student travels from St. Louis to Indianapolis, a distance of 210 mi, in 6.0 h. The return trip over the same route takes 7.0 h. What is the average speed for
a. the first half of the trip?
b. the second half of the trip?
c. the total trip?

Accepted Answer

a. 35 mi/h

Question 17

An object with a mass of 5 kg is dropped and takes 9 s to hit the ground. Then another object with a mass of 10 kg is dropped from the same point. How long does it take to hit the ground?

Accepted Answer

A)  9 s 
B)  18 s 
C)  5 s 
D)  81 s 
E)  729 s 
A)  9 s 
B)  18 s 
C)  5 s 
D)  81 s 
E)  729 s

Question 18

Which of the following is a possible unit of acceleration?

Accepted Answer

A)  m/s2 
B)  m × s 
C)  m2/s 
D)  m/s 
A)  m/s2 
B)  m × s 
C)  m2/s 
D)  m/s

Question 19

The magnitude of a displacement is ______________ the magnitude of the distance traveled.

Accepted Answer

A)  always unequal to 
B)  less than or equal to 
C)  always equal to 
D)  greater than or equal to 
E)  none of these; the two cannot be compared. 
A)  always unequal to 
B)  less than or equal to 
C)  always equal to 
D)  greater than or equal to 
E)  none of these; the two cannot be compared.

Question 20

An object that is moving in a linear path with an acceleration in the direction of motion has a(n) ______________ velocity.

Accepted Answer

A)  constant 
B)  increasing 
C)  decreasing 
D)  none of these 
A)  constant 
B)  increasing 
C)  decreasing 
D)  none of these

Exam 2: Motion

In straight-line motion, if a moving object slows down, the direction of the acceleration is ______________ the direction of the velocity.

An object that is moving in a linear path with an acceleration in the direction opposite to the motion has a(n) ______________ velocity.

A golfer hits a ball on a level fairway at an angle of 30° relative to the horizontal, and it lands on the green. Another golfer hits a ball with the same speed but at an angle of 60°, and it lands on the green by the other ball. Which statement is accurate for this situation?

A stone is dropped from the top of a well that has water in it at a depth of 30.0 m. How long does it take the stone to reach the water?

An object that is moving with an acceleration different from zero will always have a(n) ______________ velocity.

The distance traveled by an automobile moving at a constant velocity is

Physics deals with matter, motion, force, and ______________.

In straight-line motion, if a moving object speeds up, the direction of the acceleration is ______________ the direction of the velocity.

A ball is thrown up in the air with an initial velocity of 58.8 m/s upward. How long does it take the ball a. to go up? b. to come down after reaching maximum height?

The magnitude of the acceleration of an object moving in a circle at constant speed is

A rifle bullet shot horizontally at a velocity of 9.8 m/s has a horizontal acceleration of ______________.

A continuous change in position is called ______________.

Under ideal conditions, a projectile with a given initial speed at an angle of 15° has the same range as a projectile at an angle of ______________ with the same initial speed.

Which of the following statements is not true?

Because of air resistance, an object falling a great distance may reach a ______________ velocity.

A student travels from St. Louis to Indianapolis, a distance of 210 mi, in 6.0 h. The return trip over the same route takes 7.0 h. What is the average speed for a. the first half of the trip? b. the second half of the trip? c. the total trip?

An object with a mass of 5 kg is dropped and takes 9 s to hit the ground. Then another object with a mass of 10 kg is dropped from the same point. How long does it take to hit the ground?

Which of the following is a possible unit of acceleration?

The magnitude of a displacement is ______________ the magnitude of the distance traveled.

An object that is moving in a linear path with an acceleration in the direction of motion has a(n) ______________ velocity.

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