Physics Unit 10 Review Questions Part 1

Forces make objects accelerate in a straight line (linearly) torques make objects _________

An angle of ___ degrees between the force and the lever arm gives a maximum torque

Torque is calculated by ​ (a)   the ​ (b)   with the ​ (c)   as described in the equation ​ (d)   .

• multiplying
• force
• lever arm
• T = F x l
• dividing
• T = F/l

Select the objects that have a COG where no material exists

• boomerang

• ring

• hula hoop

• full metal sphere

An object will topple if its c.o.g is located outside of its _______

An object is most stable when its ​ (a)   is located at the ​ (b)   possible point

• center of gravity
• lowest
• rotational mass
• highest

An object at rest stays at rest and an object in motion stays in motion describes the property of matter called ____________.

 If the mass of a body is located close to its axis of rotation, it is ​ (a)   to rotate the body because it has a ​ (b)   rotational mass.

• easier
• low
• high
• probable

A _______ pendulum is more difficult to rotate and therefore swings more slowly

Animals with shorter legs have ​ (a)   strides than long-legged animals because their legs have ​ (b)   rotational masses

• faster
• less
• more
• slower