# Machine Kinematics MCQ Mechanical Engineering

50 Questions 30 Mins

### About Machine Kinematics

How Machine Kinematics Works: The Science Behind Motion and Movement

Have you ever wondered how machines move? How do they create the motion we see in everyday life?

Kinematics is the study of motion without regard to the forces that cause it. In other words, it's the science of movement. And machine kinematics is the application of this science to machines.

Machine kinematics deals with the movement of parts in a machine, and the forces and energy required to make that happen. It's the study of how machines work - how they move and how they create the things we use in our everyday lives. So, how does machine kinematics work? Let's take a look at the science behind motion and movement.

Kinematics is the branch of mechanics that deals with the motion of objects without regard to the forces that cause it. Machine kinematics is the study of machine movement. It's concerned with the movement of parts in a machine, and the forces and energy required to make that happen.

#### Wrapping Up

Kinematics is a branch of physics, and machine kinematics is a branch of engineering. The study of machine kinematics can be divided into two main areas: statics and dynamics. Statics is the study of objects at rest, and dynamics is the study of objects in motion.

Following are some of the multiple choice questions on the Machine Kinematics with answers that will help the students in developing their knowledge.

## Machine Kinematics MCQ

• 19 m/s
• 5 m/s
• 22 m/s
• 21 m/s

• 0.060 m/s
• 17 m/s
• 44 m/s
• -17 m/s

### 3. Alexis is riding her bike around town. She travels 43.2 m to the right, and then turns around to bike an additional 30 m to the left. Determine the velocity of Alexis's bike ride if it takes her 39.4 seconds to complete her motion.

• 2 m/s to the right
• 2 m/s to the left
• 0.3 m/s to the right
• 0.3 m/s to the left

### 4. What does a horizontal line on a distance vs time graph tell us about the motion of the object?

• Slowing down
• Speeding up
• Standing still
• In free fall

### 5. What does a horizontal line on a velocity vs time graph tell us about the motion of an object?

• Constant speed
• Standing still
• Slowing down
• Speeding up

### 6. What does a constant velocity do tour our acceleration?

• Acceleration increases
• Acceleration decreases
• Acceleration is zero
• Acceleration is not affected by velocity

• +12 m/s2
• -7.4 m/s2
• -12 m/s2
• +7.4 m/s2

• 2.2 m/s
• 0.45 m/s
• 6.1 m/s
• 3.6 m/s

### 9. What are our units for acceleration?

• m
• m/s2 or meters/second/second
• N
• m/s or meters/second

### 10. How can you change the acceleration of an object?

• Speed the object up
• Keep the object at a constant speed
• Slow the object down
• Change the object's direction

### 11. Imagine Mr. Gomez spinning a yo-yo in a circular motion with a constant speed. Would the yo-yo have an acceleration during its motion?

• Yes; the displacement is changing, resulting in a changing acceleration
• No; objects at a constant speed always have zero acceleration
• No; acceleration does not apply to centripetal (circular) motion
• Yes; the direction is constantly changing, which changes the acceleration

• 4.9 m/s
• 2.0 m/s
• 7.3 m/s
• 0.13 m/s

• -170 m
• +76 m
• +170 m
• -76 m

• 217 m
• 180 m
• 110 m
• 7.9 m

• 50 m/s
• 150 m/s
• 285 m/s
• 170 m/s

• -7.5 m/s
• -7.5 m/s2
• -0.5 m/s2
• 7.5 mi//hr

• 4.20 m
• 52.5 m
• 105 m
• 158 m

### 18. A quantity that is has magnitude and direction is referred to as a

• vector quantity
• scalar quantity

### 19. A car slows down from +32 m/s to +8 m/s in 4 s. The acceleration is

• 6 m/s/s opposite the motion
• 2m/s/s in the direction of motion
• 8 m/s/s opposite the motion
• none of the above

### 20. The unit we use to measure acceleration is ___.

• meters / second
• meters
• seconds
• meters / second / second

• sliding pair
• rolling pair
• surface pair
• lower pair

### 23. Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and motion of the parts?

• theory of machines
• applied mechanics
• kinematics
• kinetics

### 24. Which of the following disciplines provides study of relative motion between the parts of a machine?

• theory of machines
• applied mechanics
• kinematics
• kinetics

### 25. The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as

• turning pair
• rolling pair
• sliding pair
• spherical pair

• foot (ft)
• inch (in)
• mile (mi)
• meter (m)

• second (s)
• minute (min)
• hour (hr)
• year (yr)

• m/s
• m
• m/s2
• s

• Km
• s
• m/s
• m/s2

### 30. How much time would it take for an object to fall 4.7 meters?

• 0.959 s
• 4.79 s
• 0.979 s
• none of the above

• 27 m/s
• 3 m/s
• -27 m/s
• -3 m/s

• 1.3 m/s2
• 2.5 m/s2
• 3.0 m/s2
• 7.5 m/s2

• 525 m
• 3750 m
• 6235 m
• 9813 m

• 19.6 m/s
• -5.4 m/s
• -44.6 m/s
• 44.6 m/s

### 35. A change in velocity over time is known as:

• acceleration
• constant speed
• average speed
• displacement

### 36. The speedometer on your car tells you

• average velocity
• instantaneous velocity
• average speed
• instantaneous speed

### 37. A cheetah travels 75 m in 3 s. What is her velocity over the interval?

• 225 m/s
• 25 m/s
• 0.04 m/s
• none of the above

### 38. An object is NOT accelerating if it is moving

• in a circle
• at constant velocity
• at increasing speed
• only as influenced by gravity

### 39. Speed is a __________ quantity and velocity is a __________ quantity.

• scalar, vector
• vector, scalar

### 40. A _________ quantity is completely described by magnitude alone. A _________ quantity iscompletely described by a magnitude with a direction.

• vector, scalar
• scalar, vector

• True
• False

### 42. A quantity that is ignorant of direction is referred to as a

• vector quantity
• scalar quantity

• fluid
• flexible
• rigid
• pneumatic

• rigid
• fluid
• flexible
• separate

• flexible
• rigid
• fluid
• separate

• kinetics
• dynamics
• kinematics
• static

• Machine
• structure
• Mechanism
• Force

• force
• structure
• mechanism
• machine

• statics
• kinetics
• kinematics
• pair