Kinematics Horizontal Motion

What is displacement?

• Speed

• Change in position

• Distance traveled

• Acceleration

What is the formula to calculate displacement?

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A car travels 50 meters to the east and then 30 meters to the west. What is the displacement of the car?

• 20

• 0

• -20

• 80

What is velocity?

• Rate of change of displacement

• Rate of change of acceleration

• Rate of change of time

• Rate of change of speed

What is the formula to calculate velocity?

• Velocity = Distance / Time

• Velocity = Acceleration x Time

• Velocity = Change in position / Change in time

• Velocity = Mass x Acceleration

Tags

NGSS.MS-PS3-1

A person walks 2 meters per second to the north. What is their velocity?

• 2 meters per second to the south

• 2 meters per second to the east

• 2 meters per second to the west

• 2 meters per second to the north

What is acceleration?

• Acceleration is the rate at which an object changes its position over time.

• Acceleration is the rate at which an object changes its velocity over time.

• Acceleration is the rate at which an object changes its speed over time.

• Acceleration is the rate at which an object changes its mass over time.

What is the formula to calculate acceleration?

• Acceleration = (final velocity + initial velocity) / time

• Acceleration = (final velocity * initial velocity) / time

• Acceleration = (final velocity - initial velocity) * time

• Acceleration = (final velocity - initial velocity) / time

A car accelerates from 0 m/s to 20 m/s in 5 seconds. What is its acceleration?

• 4 m/s^2

• 10 m/s^2

• 6 m/s^2

• 2 m/s^2

A ball is thrown vertically upwards with an initial velocity of 10 m/s. What is its displacement after 2 seconds?

• 0.4

• 5

• 10

• -20

Tags

NGSS.HS-PS2-1