Physical Science 1st Semester Exam Review

Front

If you were standing under the tree, which object would appear to be moving? Options: the tree, the airplane, the boy, the building

Back

the airplane

Front

A passenger in the rear seat of a car moving at a steady speed is at rest relative to: the side of the road., a pedestrian on the corner ahead., the front seat of the car., the wheels of the car.

Back

the front seat of the car.

Front

Which distance can be most accurately measured with a ruler? Options: the length of a river, the width of a book, the distance between two cities, the size of an object under a microscope

Back

the width of a book

Front

What is the total displacement of a person who walks 1 mile every day for exercise, leaving her front porch at 9:00 am and returning at 9:25 am?

Back

The total displacement is 0 miles, as she returns to her starting point.

Front

What is the magnitude of the ball’s displacement if it rolls uphill 5 meters and then downhill 9 meters?

Back

4 meters

Front

Displacement vectors of 4 km south, 2 km north, 5 km south, and 5 km north combine to a total displacement of

Back

2 km south

Front

Speed is the ratio of the distance an object moves to

Back

the amount of time needed to travel the distance.

Front

Instantaneous speed is measured

Back

at a particular instant.

Front

A car traveled 60 km in 2 hours, 84 km in the next 1 hour, and then 68 km in 2 hours before reaching its destination. What was the car’s average speed?

Back

42 km/hr

Front

The slope of a line on a distance-time graph is

Back

speed