Chapter 4 Review Mr. Hauser

Rules of the Game Working in TEAMS, you will be asked to answer questions from the assigned chapters. You have 30 seconds to write the answer down on the dry erase board. When the teacher says TIME’S UP, a team leader will stand up and show the teacher their answer.

Rules (Continued) Each correct answer is worth one point, unless otherwise stated. Teams can lose points for inappropriate conduct, comments, or cheating. The team with the most points at the end of the game wins!

Question 1 For every action, there is an equal and opposite reaction is a statement of _______________.

Newton’s Third Law

Question 2 What are the English units used to measure mass? (Write out the word.)

Slug

Question 3 If an object’s mass is increasing while a constant force is applied to the object, the acceleration A)Increases B)Decreases C)Remains the same

A. Decreases

Question 4 Find the mass of something that weighs 56 N. (with proper units)

5.7 kg

Question 5 An object’s resistance to a change in its state of motion is called _________.

Inertia

Question 6 The mass of a pet turtle that weighs 10N is about A. 1kg B. 100kg C.1000 kg D.10 kg E. none of these

A. 1kg

Question 7 Your textbook weighs 2 N. When held at rest above your head, the net force on the book is … A. 0 N. B. 2 N. C. 4 N. D. None of these

A. 0 Newtons

Question 8 Which has no change in its state of motion? A. An object in equilibrium. B. An object at rest. C. An object moving at a constant speed. D. All of these. E. None of these.

D. All of These

Question 9 If the acceleration of gravity on Jupiter is 3 times that on Earth. What will the mass of 10 kg of copper be on Jupiter?

10 kg (The mass doesn’t change)

Question 10 What is the only quantity that affects the amount of inertia something has?

mass

Question 11 Newton’s Second Law states A. a=F-M B. a=F/m C. m=F a D. F=m/a

B. a = F/m

Question 12 A jet has a mass of 100,000kg. Each engine has a force of 50,000N. What is the jet’s acceleration in meters per second squared? A.1 B.2 C.4 D..25 E.None of these

1 m/s^2

Question 13 An object is pulled up with a two forces of 20 N and 35 N. However, gravity pulls down on it with 40 N. Find the net force’s size and direction.

15 N going up

Question 14 When an object falls through a vacuum, its velocity increases and its acceleration A.Increases B.Decreases C.Stays the same

Question 15 A 4 kg object has 35 N pulling to the right, 20 N pulling up, and 5 N pulling to the left. Find its accleration and direction

9.0 m/s^2 at 33.7 degrees north of east

Question 16 This quantity measures the rate of change of velocity.

Acceleration

Question 17 Forces always Occur… a. When velocities are constant b. In Pairs c. As single quantities d. In triplets

Answer B. In Pairs

Question 18 Accelerations are produced by a.Velocities b.Speeds c.Forces d.Masses e.None of the above

Answer c. forces

Question 19 An unfortunate bug splatters against the windshield of a moving car. Compared to the force of the car on the bug, the force of the bug is …. A.Smaller B.Larger C.The same size

Answer c. The same size

Question 20 According to Newton’s Third Law, if you push gently on something, it will push…. A.Gently on you B.Gently on something else C.On you only if you are not moving

Answer a. Gently on you