Semester I Exam Spring 2024

How much force is required to accelerate an 8.6 kg wagon by 15 m/s2?

• a. 1.74N
• b. 129N
• c. 0.57N
• d. 57N

the steepness of a line on a graph, equal to its vertical change divided by its horizontal change

• speed
• slope
• constant speed
• precision

The motion in this graph is __________.

• constant velocity
• positive acceleration
• negative acceleration
• no motion

The motion in this graph is __________.

• positive constant velocity
• positive acceleration
• negative acceleration
• negative constant velocity

What is a projectile?

• a. any object that floats to space
• b. any object which the only force acting on it is gravity
• c. any object where every force in the universe acts on it
• d. any object that moves only horizontally

The moon has a smaller mass than the Earth. If you were able to travel to the moon your weight would...

• a. Increase
• b. Decrease
• c. Stay the same
• d. Vary with day and night

What velocity does an object at rest have

• 1m/s
• 0m/s
• 10m/s
• .5m/s

Which of the following is NOT a vector quantity?

• 23m/s East
• 7m right
• 750mL
• 10km down

Use the following picture to answer the following question. In this position-time graph, what is occurring at seconds 2s-3s?

• The object is traveling in a negative direction
• The object is at rest
• The object is speeding up
• The object is returning to the starting position

Which of the following forces arises from direct physical contact between two objects?

• a. gravitational force
• b. fundamental force
• c. contact force
• d. field force