Linear Motion

An object starts its linear motion from rest. Which of the following quantities does not change throughout the motion?

• Time
• Initial velocity 
• Final velocity
• 1qAcceleration

When one object is travelling with a constant velocity, its acceleration will be 

• decreasing
• increasing
• constant
• zero

An aeroplance is flying with decreasing acceleration, hence its velocity is 

• increasing 
• decreasing
• constant

Tags

NGSS.HS-PS2-1

A student starts cycling from rest and reaches a speed of 12 m s^-1 in 6 seconds. The distance travelled by him is

• 18 m
• 36 m
• 54 m
• 72 m

A car accelerates from rest to 4 m s^-2 for a period of 2 minutes. What is the velocity of the car after 1 minute?

• 8 m s^-1
• 16 m s^-1
• 240 m s^-1
• 480 m s^-1

A bus decreases its velocity from 8 m s^-1 to 4 m s^-1 in a distance of 12 m. What is the acceleration of the bus, in m s^-2?

• - 4
• - 2
• 2
• 4

Tags

NGSS.HS-PS2-1

A stone is being thrown vertically upwards with an initial velocity of 20 m s^-1. Calculate the time taken for the stone to go up and come down to the ground. [g = 10 m s^-2]

• 0 s
• 1 s
• 2 s
• 4 s

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

True or False
Mass determines the acceleration of an object.

• True
• False

Tags

NGSS.MS-PS2-2

True or False
Velocity and acceleration are always in the same direction.

• True
• False

True or False
An object in free fall is always moving down.

• True
• False

Tags

NGSS.MS-PS2-4