Speed, unlike acceleration or velocity, does NOT specify _______.

options:

Time
Time

Direction
Direction

Distance
Distance

Mass

5 answers

Speed, unlike acceleration or velocity, does NOT specify Direction.

Speed is a scalar quantity that only measures how fast something is moving, without regard to the direction of movement. In contrast, velocity is a vector quantity that includes both speed and direction.

Which example shows an object acted on by two balanced forces?

options:

A baseball rolling to a stop
A baseball rolling to a stop

A car moving at a constant speed in a constant direction
A car moving at a constant speed in a constant direction

A snowflake landing on a roof
A snowflake landing on a roof

A skateboard rolling down a hill with increasing speed

The example that shows an object acted on by two balanced forces is A car moving at a constant speed in a constant direction.

In this case, balanced forces mean that the net force acting on the car is zero, resulting in the car moving at a constant speed without acceleration. The other examples involve unbalanced forces that result in changes in speed or direction.

To measure average speed, what data is required?

options:

The distance traveled and the time spent
The distance traveled and the time spent

The direction and the distance of travel
The direction and the distance of travel

The weight of the bike and the time spent
The weight of the bike and the time spent

The direction of travel and the weight of the bike

To measure average speed, the required data is The distance traveled and the time spent.

Average speed is calculated by dividing the total distance traveled by the total time taken for that travel.