Understanding Distance-Time Graphs

What does a flat line on a distance-time graph indicate about the object's motion?

• The object is moving at a constant speed.

• The object is moving backwards.

• The object is accelerating.

• The object is stationary.

If a line on a distance-time graph is sloped upwards, what does it signify?

• The object is slowing down.

• The object is moving backwards.

• The object is moving at a constant speed.

• The object is stationary.

What does a curved line that gets steeper on a distance-time graph represent?

• Deceleration

• Constant speed

• Acceleration

• Stationary

How is the slope of a distance-time graph related to speed?

• Slope equals time divided by distance.

• Slope equals distance divided by time.

• Slope equals acceleration.

• Slope equals velocity times time.

What does a steeper slope on a distance-time graph indicate?

• The object is moving backwards.

• The object is moving slower.

• The object is stationary.

• The object is moving faster.

How do you calculate average speed from a distance-time graph?

• Total time divided by total distance

• Total distance divided by total time

• Initial speed plus final speed

• Total distance times total time

In the context of the tractor problem, what does a straight sloped line in section B indicate?

• The tractor is stationary.

• The tractor is moving at a constant speed.

• The tractor is accelerating.

• The tractor is decelerating.

What must be true about the forces acting on an object moving at a constant speed?

• The forces are unbalanced.

• The net force is zero.

• The forces are equal but not opposite.

• The object is accelerating.

How do you determine the speed of the tractor at the end of section A?

• By calculating the average speed of the entire journey.

• By measuring the distance at the start of section A.

• By measuring the time at the end of section A.

• By calculating the slope of section B.

What is the formula to calculate force if mass and acceleration are known?

• Force = mass / acceleration

• Force = mass + acceleration

• Force = mass x acceleration

• Force = acceleration / mass