Exam

True or false? if false make it true. Balanced forces acting on an object cause the object to accelerate.

...........acting on an object cause the object to accelerate.

True or false? if false make it true. Friction is a force that speeds up motion between two surfaces that are in contact.

Friction is a force that ......motion between two surfaces that are in contact.

.....is a force that speeds up motion between two surfaces that are in contact.

True or false? if false make it true. When you push downward on Earth to make a pole vault, Earth exerts an equal force on the pole.

True or false. if false make it true. When you ride your bike around a corner at 10 m/s, you are accelerating.

Which of the following is an example of a noncontact force? (A) amusician playing piano (B) anathlete hitting a ball with a bat (C) a ball falling after you toss it in the air (D) akarate expert breaking a stack of wood

An object of large mass has than an object of small mass. (A) less momentum (B) more momentum (C) less weight (D) greater acceleration

Which of the following is a force? (A) momentum(B) friction (C) acceleration (D) velocity

A skater slowing as she slides across the ice is an example of (A) inertia (B) momentum(C) friction(D)mass

Which of the following keeps a satellite in orbit? (A) frictional force (B) kinetic force (C) centripetal force (D) acceleration force

What keeps sattelites in orbit

For every action there is (A) a reaction (B) an equal reaction (C) an opposite reaction (D) an equal and opposite reaction

For every action there is...