Asked by BTS ARMY

Acceleration is _______________.(1 point)
Responses

An object’s speed in a specific direction
An object’s speed in a specific direction

An object’s velocity’s rate of change

An object’s speed when its motion is constant
An object’s speed when its motion is constant

An object’s direction’s rate of change
Answered by BTS ARMY
What do unbalanced forces do?(1 point)
Responses

Unbalanced forces allow an object’s motion to stay the same.
Unbalanced forces allow an object’s motion to stay the same.

Unbalanced forces cannot change an object’s direction.
Unbalanced forces cannot change an object’s direction.

Unbalanced forces can make an object move in the opposite direction of the force that is applied.
Unbalanced forces can make an object move in the opposite direction of the force that is applied.

Unbalanced forces cause an object’s motion to change.
Answered by BTS ARMY
In a boat race, the boats all sail the same distance. In addition to the distance covered, what information is necessary to calculate the winner?(1 point)
Responses

Each boat’s size
Each boat’s size

The time each boat takes to get to the finish line
The time each boat takes to get to the finish line

The skill of each boat’s crew
The skill of each boat’s crew

The wind’s speed
Answered by BTS ARMY
The graphs below depict different cars moving on a straight road.


Image

Which graph shows a car moving with constant speed?

(1 point)
Responses

A
A

B
B

C
C

D
D
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Answered by BTS ARMY
Which choice represents velocity?(1 point)
Responses

4 g/mL
4 g/mL

15 km/hr west
15 km/hr west

12 m/s2
12 m/s2

35 m/s
Answered by BTS ARMY
The graph below shows a cyclist’s velocity over a period of time.


1358540

Describe the cyclist’s acceleration.

(1 point)
Responses

The acceleration of cyclist is going down
The acceleration of cyclist is going down

The acceleration of the cyclist is constant and zero
The acceleration of the cyclist is constant and zero

The acceleration of the cyclist is going up
The acceleration of the cyclist is going up

The acceleration of the cyclist is constant and non-zero
The acceleration of the cyclist is constant and non-zero
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Answered by GPT-4o mini
Acceleration is **an object’s velocity’s rate of change**.
Answered by GPT-4o mini
Unbalanced forces cause an object’s motion to change.
Answered by GPT-4o mini
The time each boat takes to get to the finish line.
Answered by GPT-4o mini
To determine which graph shows a car moving with constant speed, you would look for a straight line that has a constant slope. Since I can't see the graphs, I can guide you based on typical graph characteristics:

- **A constant speed** is represented by a straight line that does not curve.
- If the line is sloped, it means the speed is constant; if it curves, the speed is changing.

Please review the graphs and select the one that has a straight line. If you can describe the graphs, I can help you identify it more specifically!
Answered by GPT-4o mini
The choice that represents velocity is **15 km/hr west**.

Velocity is defined as speed in a specific direction, while the other options either represent mass density (4 g/mL), acceleration (12 m/s²), or speed without direction (35 m/s).
Answered by GPT-4o mini
To accurately describe the cyclist's acceleration based on the graph, it would be essential to see the graph itself. However, I can provide general guidance based on common scenarios:

1. **If the graph is a straight horizontal line:** The acceleration of the cyclist is constant and zero (the velocity is not changing).
2. **If the graph is a straight line with a positive slope:** The acceleration of the cyclist is constant and non-zero (the cyclist is accelerating consistently).
3. **If the graph is a straight line with a negative slope:** The acceleration of the cyclist is going down (the cyclist is slowing down).
4. **If the graph curves upwards:** The acceleration of the cyclist is going up (the cyclist is accelerating faster over time).
5. **If the graph curves downwards:** The acceleration is decreasing (the cyclist is still accelerating but at a decreasing rate).

Please select the option that best corresponds to the behavior shown in your graph. If you describe the graph's shape, I can help confirm your choice!