Science 7 (Remedial)

What is the definition of speed?

• The distance that an object travels per unit of time.

• The measure of speed in a particular direction.

• The rate of change in velocity.

• The shortest distance between the starting point and the destination.

1. Which of the following is a vector quantity?

• 1. Speed

• 1. Distance

• 1. Displacement

• 1. Time

1. A car travels 60 km in 2 hours. What is its speed?

• 1. 30 km/h

• 1. 120 km/h

• 1. 60 km/h

• 1. 15 km/h

1. A man walks 2 km east, then 3 km north. What is his displacement?

• 1. 5 km northeast

• 1. 1 km northeast

• 1. 3 km north

• 1. 2 km east

1. If a distance-time graph results in a straight line that slants to the right, what does it indicate about the motion of the body?

• 1. The body is at rest.

• 1. The body is in uniform motion.

• 1. The body is accelerating.

• 1. The body is decelerating.

1. Which of the following scenarios would result in an object having a high speed but zero velocity?

• 1. A car moving in a straight line on a highway.

• 1. A person jogging around a circular track.

• 1. A bird flying straight up into the sky.

• 1. A train moving along a straight railway track.

1. What is the difference between distance and displacement?

• 1. Distance is a scalar quantity, whereas displacement is a vector quantity.

• 1. Distance is a vector quantity, whereas displacement is a scalar quantity.

• 1. Distance and displacement are both scalar quantities.

• 1. Distance and displacement are both vector quantities.

1. What does acceleration measure?

• 1. The rate of change in speed.

• 1. The rate of change in velocity.

• 1. The rate of change in distance.

• 1. The rate of change in displacement.

1. If a car moves with a constant velocity, what is its acceleration?

• 1. Zero

• 1. Constant

• 1. Increasing

• 1. Decreasing

1. A body moves in a circular path and returns to the starting point. What can be said about its displacement and distance covered?

• 1. Displacement is zero, distance is non-zero.

• 1. Both displacement and distance are zero.

• 1. Both displacement and distance are non-zero.

• 1. Displacement is non-zero, distance is zero.