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Topic: Modern Physics
Instructions: Answer all questions to get your test result.
Question 1 of 10
Any force that is keeping an object moving in a circle is know as
Question 2 of 10
how fast an object moves
a change in velocity over time
the speed of an object
a change in force over time
Question 3 of 10
When one object exerts a force on another object, the second object exerts a force back on the first object that is
equal in size and opposite in direction
equal in size and in the same direction
unequal in size and in the same direction
unequal in size and opposite in direction
Question 4 of 10
Balanced forces act on
the same object
two different objects
Question 5 of 10
A push or pull is called
Question 6 of 10
James combines all the forces acting on a tennis ball. He is finding the
Question 7 of 10
Janet is sliding a box across the floor. What does she need to know to calculate the force on the box?
acceleration and friction
mass and inertia
mass and acceleration
friction and gravity
Question 8 of 10
Inertia is the resistance of an object to a change in its
Question 9 of 10
A soccer player kicks a ball that is at rest. What do you predict will happen?
The ball will lose momentum.
The ball will accelerate in the direction opposite the applied force.
The ball will not move.
The ball will accelerate in the same direction as the applied force.
Question 10 of 10
According to Newton's second law of motion, force equals mass time
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