Speed vs. Velocity

What is the formula to calculate speed?

• S = t ÷ d

• S = d ÷ t

• S = d x t

• S = t x d

Answer explanation

The correct formula to calculate speed (S) is S = d ÷ t, where d is distance and t is time. This means speed is determined by dividing the distance traveled by the time taken.

Tags

NGSS.MS-PS3-1

What is the formula to calculate speed?

• S = t ÷ d

• S = d ÷ t

• S = d x t

• S = t x d

Answer explanation

The correct formula to calculate speed (S) is S = d ÷ t, where d is distance and t is time. This means speed is determined by dividing the distance traveled by the time taken.

Tags

NGSS.MS-PS3-1

What is speed?

• how far you go

• how much distance is covered over a period of time

• how fast you accelerate

• the change in the location of a object

Answer explanation

Speed is defined as how much distance is covered over a period of time. This means it measures how quickly an object moves, making the correct choice the one that accurately describes this relationship.

Tags

NGSS.MS-PS3-1

What is speed?

• how far you go

• how much distance is covered over a period of time

• how fast you accelerate

• the change in the location of a object

Answer explanation

Speed is defined as how much distance is covered over a period of time. This means it measures how quickly an object moves, making the correct choice the one that accurately describes this relationship.

Tags

NGSS.MS-PS3-1

What two measurements are necessary for calculating speed?

• Mass and time

• Temperature and mass

• Mass and distance

• Distance and time

Answer explanation

To calculate speed, you need to know how far an object has traveled (distance) and how long it took to travel that distance (time). Therefore, the correct measurements for calculating speed are distance and time.

What two measurements are necessary for calculating speed?

• Mass and time

• Temperature and mass

• Mass and distance

• Distance and time

Answer explanation

To calculate speed, you need to know how far an object has traveled (distance) and how long it took to travel that distance (time). Therefore, the correct measurements for calculating speed are distance and time.

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

Tags

NGSS.MS-PS3-1

What is velocity?

• the quickness of an object
• the location of an object
• acceleration
• speed in a specific direction

Tags

NGSS.MS-PS3-1

The salesmen is running away from his customers towards his house in the south at 9 m/s

• speed

• velocity

Answer explanation

The correct choice is 'velocity' because it includes both speed and direction. The salesman is moving south at 9 m/s, which specifies his direction, making it a velocity rather than just a speed.

Mr. Smith and Mrs. Bates write a referral and walk at 5 m/s towards their office.

• speed

• velocity

Answer explanation

The correct choice is 'velocity' because it includes both speed (5 m/s) and direction (towards their office). Speed is a scalar quantity, while velocity is a vector quantity that specifies direction.