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100
The moon's ______________ pull on Earth causes the change in the daily tides. a)unbalanced b)balanced c)gravitational d)insanely strong
What is c)gravitational
100
_________ friction makes it difficult to start moving an object. a)static b)less c)motion d)gravity
What is a)static
100
No movement would occur if N forces had _______ forces pulling from the left and the right. a)unbalanced b)oN on the left, and 3N on the right c)equal d) none of the above
What is c)equal
100
A biker travels 10 kilometers in 15 minutes so his/her speed is ___ km/hr. a)20 km/hr b)40km/hr c)150km/hr d)1.5km/hr
What is b)40km/hr
100
________ is the speed of an object in a particular direction. a)acceleration b)speed c)force d)velocity
What is d)velocity
200
T/F: Inertia causes an object to remain in the same place unless a force acts on it.
What is True!
200
T/F: A dip on a speed/time graph would indicate a change in acceleration.
What is True!
200
T/F: Gravity does not keep the moon from shooting straight out into outer space.
What is False: Gravity DOES keep the moon from shooting straight out into outer space.
200
T/F: A push or pull is called energy.
What is False: A push or pull is called FORCE.
200
T/F: The sum of all forces acting on an object is called total force.
What is False: The sum of all forces acting on an object is called NET force.
300
A ________ _______ is used to measure force.
What is spring scale
300
A soccer ball rolling on grass would most likely travel (farther than, not as far as) a soccer ball rolling on a tile floor.
What is A soccer ball rolling on grass would most likely travel NOT AS FAR AS a soccer ball rolling on a tile floor.
300
Earth's gravitational force would be (greater/lesser) on an object at sea level.
What is Earth's gravitational force would be GREATER on an object at sea level.
300
A baseball hitting a bat has an opposite but _______ force.
What is equal
300
Your (weight/mass) would be less on the Moon.
What is weight.
400
The force of gravity depends on the masses of ....?
What is two objects.
400
A biker travels 25km/hr westward on a highway. What am I describing?
What is the biker's velocity (speed of an object in a particular directions) speed=25km/hr direction=west/westward
400
List Newton's 3 laws of motion.
What is... 1) The law describing inertia 2) The law describing acceleration 3) The law describing action-reaction/opposite but equal forces
400
What causes the change in daily tides on Earth?
What is: The moon's gravitational pull. (yes, you do have to have both the moon and gravitational pull in your answer!!)
400
What describes a vehicle slowing from 60km/hr to 40km/hr?
What is acceleration
500
How would an observer use a frame of reference to detect motion?
What is: (you need an answer similar to this) In order to determine an object's motion, an observer views an object in motion to another object that appears to stay in place. The object that appears to stay in place is the observer's frame of reference. If you need an example, come talk to Miss Ridder!! (It'll be brief, promise!)
500
Compare how balanced and unbalanced forces affect an object at rest.
What is (something similar to this) When balanced forces pull on an object at rest, the object will not move. Balanced forces cause no change in motion. However, when unbalanced forces pull on an object at rest, the object will move in the direction of the greater force. Unbalanced forces can cause an object at rest to move. EX) Balanced=3N left and 3N right//Unbalanced=3N left and 8N right (object will move to the right in this case)
500
Explain Newton's 3 laws of motion.
What is 1) An object at rest will remain at rest until an unbalanced force acts upon it. An object in motion will remain in motion until an unbalanced force acts upon it. [Inertia]. 2)The acceleration of an object depends on the mass of that object AND that amount of force applied to that object. [Acceleration]. 3) When a force is applied to an object, the object exerts an equal force in the opposite direction. [Action-Reaction/Opposite but equal].
500
Give an example of Newton's 3 laws.
What is 1) [Inertia] Ex) When a batter hits a baseball, the baseball will remain in motion until gravity pulls it to the ground or someone catches it. 2 [Acceleration] Ex) An empty wagon pushed with a lot of force will accelerate quickly. A wagon full of bricks pushed with the same amount of force will not accelerate as quickly. 3 [Action-Reaction/Opposite but equal] Ex) When a bug hits a car windshield, the bug hits the windshield with the same amount of force as the windshield hits the bug. However, since the bug is so small, its force against the windshield cannot be felt by the people traveling in that car.
500
What are three things you have learned this chapter. You must list 3. Make sure they are relevant to the chapter and factual. If you and your partner are uncertain of your response, come talk to Miss Ridder. Either you get this right or wrong, no half credit.
What is Answers will vary.