vocabulary
What is an increase in motion?
acceleration
Which force pulls you down a playground slide?
gravity
Magnets have a negative and positive pole. What happens if you try to touch the positive ends of two magnets together?
The positive poles will repel each other.
Sandy started pushing a bookcase across the room.Then, he removed the books and continued pushing with the same force and direction. How does removing the books affect the motion of the bookcase?
The mass is decreased, making the bookcase move faster.
Which is a form of decreasing friction intentionaly? A. Putting snow tires on a car when the road is icy. B.Oil on a a squeaky door hinge. C.Wearing cleats in field sports. D.None of the above.
B.Oil on a squeaky door hinge
Mike lifted a heavy box. What force did he have to overcome to move the box upward?
Gravity
The type of force which results in movement?
unbalanced force
Explain why a parachute makes a person falling from a great height fall more slowly?
The parachute causes air resistance, which slows the fall.
Charlene kicked the winning goal in her last soccer game. What force acted between Charlene's foot and the ball to cause the ball to move?
push
Which one of these two are true? A.Friction takes place when you go down a slide. B.Friction takes place when you try to go down a street block on a metal sled.
B.Friction takes place when you try to go down a street block on a metal sled.
What is a type of friction which slows objects moving through water?
Resistance
What is the force that acts between any two masses and pulls them together? A. Corn Syrup B. Unbalanced force C. No Idea D. Gravitational force
gravitational force
Explain why a person standing on the Moon can jump higher than a person standing on Earth.
The Moon's gravitational pull is less than Earth's.
Rodrigo and Marcus are moving a dresser. They are arguing about which direction to move it. Rodrigo is pushing the dresser with a force of 5 newtons towards Marcus. Marcus is pushing the dresser towards Rodrigo with a force of 10 newtons. What happens to the dresser?
The dresser moves towards Rodrigo.
What is the measurement of the force of gravity on an object? A. Leather Belt B. Weight C. Friction D. Acceleration
weight
This is a force between two surfaces rubbing against each other. It works against the motion of an object.
Friction
Ms. Starling's class and Ms. Howard's class are playing tug-of-war. After several minutes, the students notice that the rope has not moved at all. What is one possible cause of this?
balanced force
A toy car rolling along different surfaces will experience different amounts of friction. A toy car would encounter the most friction when rolling on which surface?
A rough surface (for example: a sandy beach, over grass, over rocks)
Which type of force moves an object toward the source of the force?
pull
Which of Newton's Laws states: That for every action there is an equal and oppostite reaction. A.1st B.3rd C.2nd D.The law of Harrison Ford
3rd law
The tendency of an object to resist a change in its state of motion.
Inertia
What is inertia. A.When you have a stomach cramp B.When an object resists a change in it's state in motion C.When an object accelerates D.A force that pulls two objects together
B.When an object resists a change in it's state in motion
A car and a truck travel at the same speed on a road in the same direction. Both vehicles slow down with the same stopping force. Why does the truck need more distance the the car to stop?
The truck has more mass.
If you say,"A bird is going 30mi/hr west." you are stating its _______
velocity
______is a force that does not cancel one another out. A.balanced force. B.unbalanced force C.giraffe D. acceleration
unbalanced force