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WorksheetsForces and Newton's Laws Review
Total questions: 10
Worksheet time: 5mins
The firefighter feels the hose pushing backwards. What is the most likely cause of this?
The hose material is very elastic.
Since the hose is at rest, it tends to stay at rest.
The force exerted on the water equals the mass of the water times its acceleration.
The escaping water exerts an equal and opposite force on the hose.
If the same force is applied to each of different balls (weight listed), which one will have the LEAST acceleration?
m = 1.0 kg
m = 7.3 kg
m = 0.75 kg
m = 0.5 kg
A man applies a force to the box, but the box does not move. The force of friction is acting on the box to cancel the force of his push. What is the most likely cause of this friction?
The floor is not polished to a smooth finish.
The box is too heavy for a single person to push across the floor.
The uneven surfaces of the box and the floor are sticking together.
The man is not pushing the box with enough force.
Felicia wanted to pull out a particular issue from a pile of magazines. First, she tried pulling slowly, and the whole pile began to move. Then she tried pulling quickly, and the issue she wanted came out without the pile moving. The pile did not move when she pulled quickly because of the .
smooth surface of the magazines
inertia of the pile and friction
larger force Felicia applied
friction between the magazines
Which of these keeps a satellite moving in a circular orbit in space?
gravity
friction
air resistance
inertia
What is another name for the first Law of Motion?
Law of Inertia
Law of power
Law of Force and Acceleration
Law of gravity
What happens according to Newton if you let an untied balloon go?
3rd Law
Air will rush out of the balloon forcing the balloon to move through the air in the opposite direction, but equal in force.
2nd Law
Air will rush out of the balloon forcing the balloon to move through the air in the same direction, but equal in force.
1st Law
Air will rush out of the balloon forcing the balloon to move through the air in the opposite direction, but no force.
What are the two things that affect acceleration?
Greater acceleration and Lower acceleration
Mass and Force
Distance and Time
Final speed and Initial speed
What is the second Law about?
For every action there is an equal and opposite reaction.
An object at rest tends to stay at rest. an object in motion tends to stay in motion in a straight line at a constant speed until another force acts on the object.
How fast an object picks up speed (accelerates) or slows down (decelerates) depends on the amount of force used and on its mass.
What is Force?
the tendency for an object to resist a chance in motion
the amount of matter in an object
a push or a pull on an object
the distance an object travels per unit of time
