What do we call teeth colored purple? What name is given to the first set of teeth children get?  

You should recognize where we are in the body. What specific region of your body is the redish/brownish colored area in picture 1? The arrowhead (with the blue question mark) is pointing at a ridge within this organ. What do we call these “ridges” ? Picture 1: Picture 2:

Consider two masses and at the top of two frictionless inclined planes.  Both masses start from rest at the same height.  However, the plane on which sits is at an angle of 30° with the horizontal, while the plane on which sits is at 60°.  If the masses are released, which is going faster at the bottom of its plane?

A spherical planet of uniform density has three times the mass of the Earth and twice the average radius. The magnitude of the gravitational field strength at the surface of the Earth is g.What is the gravitational field strength at the surface of the planet?      (A)      6g(B)      2/3g(C)      3/4g(D)      3/2g

A uniform solid sphere has mass M and radius R.  If these are increased to 2M and 3R, what happens to the sphere’s moment of inertia about a central axis?(A)      increases by a factor of 54(B)      increases by a factor of 6(C)      increases by a factor of 12(D)      increases by a factor of 18

A cart of mass mm is moving with negligible friction on a track with known speed v1v_1 to the right. It collides and sticks to a cart of mass 4m4m moving with known speed v2v_2to the right. Which of the following principles must be applied to determine the final speed of the carts, and why?

A box of mass mmm is on a rough inclined plane that is at an angle θ\thetawith the horizontal. A force of magnitude FF at angle ϕ\phi with the plane is exerted on the block, as shown above. As the block moves up the plane, there is a frictional force between the box and the plane of magnitude ff.

How does a liquid differ from a gas?

A mass is attached to a vertical spring and bobs up and down between points A and B.  Where is the mass located when its kinetic energy is a maximum? (A)      midway between A and B (B)      at either A or B (C)      one-fourth of the way between A and B (D)      none of the above     

If a rock is dropped its acceleration is down at  g.  If it is thrown as a projectile, its acceleration would be