JGHS - Physics - Newton's Laws Assessment

Front

Which of the following statements are true of an object that experiences balanced forces (or unbalanced forces)?

Back

Unbalanced forces cause objects to move.

Front

Big Bubba has a mass of 100 kg on the earth. What is Big Bubba's mass on the moon where the force of gravity is approximately 1/6-th that of Earth's?

Back

100 kg

Front

Little Billie weighs 360 N on Earth. What is Little Billie's mass on the moon where the force of gravity is approximately 1/6-th that of Earth's?

Back

36 kg

Front

An object which is moving rightward has a rightward force acting upon it.

Back

False

Front

The amount of net force required to keep a 5-kg object moving rightward with a constant velocity of 2 m/s is ____ N (just put the number)

Back

0

Front

According to Newton's third law, every force is accompanied by an equal and opposite reaction force. Why do these forces not cancel each other?

Back

The two forces act upon different objects; only forces on the same object can balance each other.

Front

As you sit in your chair and study your physics (presuming that you do), the force of gravity acts downward upon your body. What is the reaction force to the force of the Earth pulling you downward?

Back

the force of your body pulling the Earth upwards

Front

During the contact of the golf club with the golf ball, the force of the club on the ball is ____ the force of the ball on the club and the acceleration of the club is ____ than the acceleration of the ball.

Back

equal to, less than

Front

A helicopter must have two sets of blades in order to fly with stability. Pick which of Newton's laws most governs this situation.

Back

3rd Law (action-reaction)

Front

If you were in an elevator and the cable broke, jumping up just before the elevator hit the ground would not save you. Sorry. Pick which of Newton's most governs the situation.

Back

Newton's 1st Law (Inertia)