WorksheetsUnit 9 Forces and Motion
Total questions: 10
Worksheet time: 10mins
To make sure your measurements are clear, it is important to use appropriate units. Which of these is a unit of time?
Kilogram
Meter
millimeter
minute
Velocity is a measurement related to motion. What is velocity?
the rate at which acceleration changes
a force that opposes motion between two surfaces that are touching
a measure of both the speed and direction of a moving object
a measure of how fast something moves; velocity is the same as speed
To make sure your measurements are clear, it is important to use appropriate units. Which of these is a unit of speed?
hours per kilogram (hr/kg)
grams per liter (g/L)
miles per hour (mph)
liters per minute (L/min)
Forces can affect the rate of an object’s motion. Which of these is a force?
speed
friction
acceleration
velocity
A train travels 200 km in the same direction in 2 hr. What is this train’s speed?
2 km/hr
100km/hr
200 km/hr
400 km/hr
Kinan ran for 1 mi at a speed of 8 min/mi. How long did it take Kinan to run 4 mi at the same rate?
2 min
8 min
32 min
64 min
Ashwath walked for 3 hr at a speed of 10 km/hr. How far did Ashwath walk?
3 km
10 km
30 km
300 km
Astronauts in outer space float because one of the forces we experience on Earth is very small in space. Which force is it?
gravity
friction
velocity
acceleration
Velocity and speed are both measurements describing an object’s motion. What is a difference between velocity and speed?
Speed depends on acceleration, but velocity does not.
Speed does not depend on direction, but velocity does.
Speed depends on velocity, but velocity does not depend on speed.
Velocity only depends on friction, but speed only depends on gravity.
Benny drops a ball off a bridge. The ball drops straight down, as shown in the diagram.
Its speed and position stay the same.
Both its speed and position change.
Its speed decreases, but its acceleration increases.
Its speed increases, but its acceleration decreases.
