Physics Quiz

An object moves at a constant speed of 6 m/s. This means that the object:

• Increases its speed by 6 m/s every second

• Decreases its speed by 6 m/s every second

• Has a positive acceleration

• Moves 6 meters every second

A toy car moves 8 m in 4 s at a constant velocity. What is the car's velocity?

• 1 m/s

• 2 m/s

• 3 m/s

• 4 m/s

What is the net displacement of the person from the initial point in two days?

• 6 km, left

• 3 km, right

• 5 km, right

• 9 km, left

Using the graph, find the average speed for the time period between 4 seconds and 8 seconds?

• 0.5 m/s

• 1 m/s

• 2 m/s

• 4 m/s

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An object is released from rest and falls in the absence of air resistance. Which of the following is true about its motion?

• Its acceleration is zero

• Its acceleration is constant

• Its velocity is constant

• Its acceleration is increasing

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Forces that are equal in size but opposite in direction are:

• balanced forces

• frictional forces

• net forces

• Its acceleration is zero

What is the acceleration of a 7 kg mass if a force of 68.6 N acts on it?

• 0.1 m/s^2

• 9.8 m/s^2

• 68.6 m/s^2

• 480 m/s^2

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A student has a set of masses to use in an experiment about force.
Which of the following masses would require the least amount of force to be lifted from the lab table?

• 1-g mass

• 25-g mass

• 5-g mass

• 100-g mass

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Which of the following best describes the free body diagram above.

• The box has a positive acceleration

• The frictional force on the box is acting to increase the velocity of the box

• The box has a net force of 100 N

• The box is in free fall

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Two objects are being pulled together by gravity.

If you were to double the distance between these two objects, what would be the new force of gravity between them?

• 1/2 the original force

• 2 times the original force

• 1/4 the original force

• 4 times the original force

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