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WorksheetsForce & Motion
Total questions: 14
Worksheet time: 28mins
This graph shows the distance traveled by a remote control toy car over time.
If the car continues moving at the same rate, how far will it travel in 2 minutes?
10 m
60 m
120 m
200 m
Mrs. Knight drops her briefcase. When the briefcase lands on the floor, what is the reaction force to the action force of the briefcase on the floor?
the force of the floor on the briefcase
the attraction of Earth for the briefcase
the force of air on the sides of the briefcase
the force of friction between the briefcase and the floor
Ben coasts along a flat road on his bike. If Ben stops pedaling, his bike will eventually stop. If energy is conserved, why does the kinetic energy of the bike NOT stay constant and continue to coast forever?
Friction causes some energy to be converted to matter.
Friction causes some energy to be converted to heat.
The energy is collected by the brake system.
he energy is cooled by the rolling tires.
Mimi pushes a book from the edge of a table and releases it at Point 1. It slides across the table and stops at Point 2.Mimi pushes a book from the edge of a table and releases it at Point 1. It slides across the table and stops at Point 2.
The friction force increases between Point 1 and Point 2.
The friction force decreases momentum between Point 1 and Point 2.
The force applied from the push decreases between Point 1 and Point 2.
The pushing force starts at Point 1 and the friction force stops at Point 2.
Two toy cars are traveling on a track.Thirteen minutes after they start, how do the speeds of the cars compare?
Both cars are traveling at the same speed
Both cars have stopped moving on the track
Car 1 is moving faster.
Car 2 is moving faster
Alesia is taking an all-day ride on her bicycle. The graph shows how far she is from home at different times during her ride.During which time period is Alesia moving fastest?
0–1 hours
3–4 hours
4–5 hours
6–7 hours
When a space shuttle orbited Earth and returned home, a force opposed its motion. What was the source of the opposing force?
friction from the atmosphere
the velocity of the shuttle
the mass of the shuttle
gravity from Earth
Some race cars are equipped with parachutes to help bring the car to a stop.Which MOST likely causes the change in the velocity of the race car?
a balanced force exerted by the parachute
an increase in the force exerted by the car
a net force of zero between the car and parachute
an unbalanced force between the car and parachute
If a leaf and a dime are dropped from the same height, what force will cause the leaf to fall more slowly?
frictional force
centripetal force
gravitational force
electromagnetic force
When a skydiver jumps from a plane, the open parachute will increase the air resistance by....
reducing fluid friction.
increasing surface area.
increasing terminal velocity.
decreasing mass.
Isaac Newton discovered the three laws of motion. Which example BEST illustrates Newton’s third law of motion, which describes action and reaction forces?
a rocket takes off from the ground
a book slides forward on a seat when the car stops
a heavier ball falls at the same speed as a lighter ball
a vehicle rounds a curve and changes its acceleration
A jet plane is moving at a constant velocity on a flat surface. Which forces act against the forward motion of the plane?
gravity and engine thrust
engine thrust and friction
friction and air resistance
air resistance and gravity
When a bird flies, its wings push air downward. As a result, the air pushes back upward on the bird. Which law of motion MOST applies to the way the wings of a bird beat?
All forces act in action-reaction pairs.
The rate of acceleration of an object depends on the amount of force applied.
Objects in motion tend to remain in motion until acted upon by another force.
An unbalanced force acting on an object equals the mass of the object multiplied by its acceleration.
When a speeding meteor enters Earth’s atmosphere, it slows down and becomes very hot due to friction. Which factor MOST influences the amount of friction that a meteor encounters when it enters the atmosphere?
the weather
magnetism
solar energy
air density
