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Mary Lou is pushing her younger brother, Steve, in his toy car. Steve gets out of the car. Steve's friend, who has more mass than he does, gets into the car. If Mary Lou wants to make the car go the same distance that it did when she pushed Steve, wh
The force exerted on the steel block is greater than the force exerted on the wooden block.
The force exerted by the engine has a smaller effect on the truck with greater mass.
thick carpet
gravity
It has the most mass.
Push the car with more force.
The forces on the rock were balanced, and a small additional force caused them to be unbalanced.
direction
Gravity is a force that pulls objects toward Earth's center. How does the gravitational force on a 1-kg block of wood compare to the gravitational force on a 5-kg block of steel, if both are on the ground?
The force exerted on the steel block is greater than the force exerted on the wooden block.
The force exerted by the engine has a smaller effect on the truck with greater mass.
thick carpet
gravity
It has the most mass.
Push the car with more force.
The forces on the rock were balanced, and a small additional force caused them to be unbalanced.
direction
A rock is balanced on the side of a hill. Although the rock is heavy, a gentle push moves it. How can a small force cause a large mass to move?
The force exerted on the steel block is greater than the force exerted on the wooden block.
The force exerted by the engine has a smaller effect on the truck with greater mass.
thick carpet
gravity
It has the most mass.
Push the car with more force.
The forces on the rock were balanced, and a small additional force caused them to be unbalanced.
direction
Why does a truck carrying a heavy load move uphill slower than an empty truck, even though the engine exerts the same force?
The force exerted on the steel block is greater than the force exerted on the wooden block.
The force exerted by the engine has a smaller effect on the truck with greater mass.
thick carpet
gravity
It has the most mass.
Push the car with more force.
The forces on the rock were balanced, and a small additional force caused them to be unbalanced.
direction
When an unbalanced force acts on an object, the motion of the object changes. Sometimes the object continues to move at the same speed. When that happens, what is it that changes?
The force exerted on the steel block is greater than the force exerted on the wooden block.
The force exerted by the engine has a smaller effect on the truck with greater mass.
thick carpet
gravity
It has the most mass.
Push the car with more force.
The forces on the rock were balanced, and a small additional force caused them to be unbalanced.
direction
Raoul threw a ball into the air and watched it go up. Then it started to fall back toward him. What force caused the ball to start to move downward?
The force exerted on the steel block is greater than the force exerted on the wooden block.
The force exerted by the engine has a smaller effect on the truck with greater mass.
thick carpet
gravity
It has the most mass.
Push the car with more force.
The forces on the rock were balanced, and a small additional force caused them to be unbalanced.
direction
Cayla likes to play many types of sports. During the course of a week, she goes bowling and plays soccer, baseball, and volleyball. Jane thinks the bowling ball requires the most force to move. Why would it require the most force?
The force exerted on the steel block is greater than the force exerted on the wooden block.
The force exerted by the engine has a smaller effect on the truck with greater mass.
thick carpet
gravity
It has the most mass.
Push the car with more force.
The forces on the rock were balanced, and a small additional force caused them to be unbalanced.
direction
The amount of friction exerted when an object moves across a surface depends on how the object and the surface rub together. For which of these surfaces will friction be greatest when a block of wood slides across it?
The force exerted on the steel block is greater than the force exerted on the wooden block.
The force exerted by the engine has a smaller effect on the truck with greater mass.
thick carpet
gravity
It has the most mass.
Push the car with more force.
The forces on the rock were balanced, and a small additional force caused them to be unbalanced.
direction
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