SCARBOROUGH EQT Review

Which of the following best explains the performer's success at leaving all the dinnerware on the table

• the inertia of the dinnerware

• the large mass of the tablecloth

• the placement of the dinnerware

• the rough material of the tablecloth

An object moving with constant speed has:

• a net force greater than zero.

• a net force equal to zero.

• a net force less than zero.

• a constant net force.

Unbalanced forces can make an object accelerate by _____.

• changing its speed

• changing its direction

• change in its speed & direction

• Neither

Which of the following is an example of an unbalanced force?

• book sitting on a table

• car sitting in the garage

• person on an elevator going down

• person leaning on a wall

Two dogs are pulling on the same rope, but the rope stays in the same place. What is happening?

• one dog is pulling with a greater force

• both dogs are pulling with the same force

• both dogs are pulling the rope in the same direction

During time interval BC, what must be true about the forces acting on the car?

• The forces are increasing

• The forces are decreasing

• The forces are balanced

• The forces are unbalanced

Which object has the greatest inertia?

• B

• A

• D

• C

When the car accelerates from a starting point, the crash test dummy appears to be pressed backwards into the seat cushions. Which of the following best explains why this happens?

• the crash test dummy gets lighter as the car accelerates

• the car is moving forward faster than the crash test dummy

• there is no reaction to the force of the car taking off

• gravity is pulling the crash test dummy in the direction the car is moving

Which graph shows how the speed of an object would change if a single constant force were applied to object to the object over a period of time

• A (Top Left)

• B (Top Right)

• C (Bottom Left)

• D (Bottom Right)

When you pull on the wagon forward suddenly, the ball will_____?

• Hit the front wall

• Hit the back wall

• Fly up in the air

• Stay where it is