Forces

Meg and Rachel each have bowling balls with the same mass. They both roll them as hard as they can and then measure the speed of the balls.Meg's ball and Rachel's ball were measured to have the exact same speed.What do you know about the forces applied by the girls?

• A)Meg applied more force than Rachel.

• B)Rachel applied more force than Meg.

• C)They applied an equal amount of force.

• D)They applied a almost the same amount of force.

When observing an object, you determine it is moving at a constant velocity and in a straight line. Which of these BEST describe the situation?

• A)there are no forces acting on the object

• B)the net force acting on the object must be zero

• C)the net force acting on the object is pushing in the same direction the object is traveling

• D)the net force acting on the object is pushing in the opposite direction the object is traveling

You are sitting in a car that isn't moving; suddenly, the car quickly accelerates. Your body seems to be pushed back against the seat. Which word best explains why your body seemed to be pushed backward against the seat?

• A)newton

• B)vector

• C)inertia

• D)gravity

A 600g basketball, a 500g football, a 150g baseball, and a 50g yo-yo: four toys. If you had to throw one of the four, which one would take the MOST force to throw?

• A)baseball

• B)basketball

• C)football

• D)yo-yo

If you know the amount of the unbalanced force acting upon an object and the mass of the object, using Newton's 2nd Law what could you calculate about the object?

• A)acceleration

• B)friction

• C)inertia

• D)velocity