The attractive force that exists between all objects in the universe.
What is gravitational force?
100
What is the unit of weight?
What is grams?
100
A truck is balanced on a hill. Although the truck is heavy, a gentle push moves it, why?
What is the force became unbalanced?
100
Noah pushes a cart with three books so it just reaches the end of a track. Next he puts six books onto the cart what must he do so that the cart reaches the end of the track?
What is use more force?
100
Cody plays golf, basketball and bowling. Cody thinks the bowling ball needs the most force to move. Why?
What is it has the most mass?
200
This unit is used to measure the force of gravity.
What is newton?
200
Force of attraction between two objects.
What is gravity?
200
When a person pushes a bookshelf a force is exerted on the bookshelf. Friction is also exerted. What direction is the force of friction exerted?
What is opposite of the force?
200
Allison uses a stretched rubber band to propel a toy car across a flat surface. What force makes the car roll forward?
What is a push from the rubber band?
200
The larger the force the greater is the ...
What is acceleration?
300
A tool that can be used to measure the size of a force.
What is a spring scale?
300
Force that opposes motion?
What is friction?
300
If an object is at rest, are forces balanced or unbalanced?
What is balanced?
300
Zack uses a spring scale to lift a weight and recorded a force of 6 N. If he had another weight with the same mass, what would the total mass be?
What is 12 N?
300
The scientist that developed the three laws of motion?
Who is Sir Isaac Newton?
400
The acceleration for any object moving under the sole influence of gravity.
What is the acceleration of gravity?
400
Constant speed attained by a body while falling through a fluid.
What is terminal velocity?
400
What kind of force causes a change in motion?
What is unbalanced forces?
400
Chris threw a ball into the air and watched it go up for a long time. Then it started to fall back toward him. What force caused the ball to return to the ground?
What is gravity?
400
The less an object's mass is, the less _________ is needed to change its motion.
What is force?
500
Rubbing your feet on the carpet causes what?
What is friction?
500
Relating acceleration to mass and net force.
What is Newton's Second Law?
500
Forces that are equal in size and opposite in direction are?
What is balanced forces?
500
A book is sitting on a dashboard of a car that's stopped at a traffic light. As the car starts to move forward, the book slides off the dashboard. Why is this?
What is inertia?
500
When an unbalanced force acts on an object, the motion of the object changes. Sometimes the object continues to move at the same speed. What changes?