Mechanics

Which of the following is an example of displacement?

• A Turtle crawls 5m North

• Jane runs 30 m

• Kyle walk 1 km

• A mouse moves 3 cm

On a round trip to Baguio, a car traveled a distance of 45 km and it took 5 hrs. What is the average speed of the car for the round trip?

• 15 km/h

• 35km/h

• 30 km/h

• 20 km/h

It is usually described as total path length.

• Distance

• Displacement

• Velocity

• Speed

What is the importance of physics in transportation?

• Cars, buses and train help utilize to provide a smooth and steady motion

• It works to any mechanical force of motion

• Physics help the transportation to complete its movement

• All of the given choices are correct

It is defined as the change in velocity per unit time.

• Displacement

• Speed

• Acceleration

• Velocity

On the earth’s surface at sea level, the exact magnitude of acceleration due to gravity is __________________________.

• 9.8 m/s2

• 3.4 m/s2

• 5.9 m/s2

• 9.0 m/s2

Which of the following statements is NOT true?

• Downward velocities are negative

• Distance above the origin is positive.

• Acceleration due to gravity is always negative.

• Upward velocities are negative

Which of the following is not an application of a projectile motion?

• Catapult

• Basketball

• Fireworks

• motion of car in a straight line

Time symmetry means that the time required for the object to reach its maximum height is not equal to the time for it to return to its starting point

• TRUE

• FALSE

Speed symmetry shows that at any displacement above the point of release, the speed of the body during the upward trip equals the speed during the downward trip.

• TRUE

• FALSE