eFFECTS OF FORCE OF AN OBJECT T3

What are the two measurement needed to determine speed?

• length and height

• time and distance

• initial force and opposite force

• gravitational forces and magnetic forces

Which of the following is not a unit of measurement for speed?

• meter/second

• miles/hour

• kilowatt per hour

• kilometer per minute

what do you call the change in position with respect to a reference point?

• direction

• friction

• motion

• shape

Janus was playing soccer and when he kicked the ball, its shape changed in a fraction of a second. Why did this happen?

• The force used by Janus changes the shape of the object.

• The motion of the ball changes the direction of the object.

• The force used by Janus changed the direction of the object.

• The motion of the ball changed the shape of the soccer ball.

When Jackie kicked a bottle at rest, the bottle moved. What effect of forces on object can be seen in this situation?

• Force can stop a moving object.

• Force can change the shape of an object.

• Force can change the speed of an object.

• Force can change the position or direction of movement of an object.

which of the following will cause repulsion in magnets?

• magnets near iron.

• magnets near metal.

• north pole and north pole of magnets.

• north pole and south pole of magnets.

Which of the following will cause attraction in magnets?

• magnets near rubber.

• magnets near nonmetal.

• north pole and north pole of magnets.

• north pole and south pole of magnets.

Which instrument is used to measure wind speed?

• anemometer

• flow meter

• speedometer

• wind vane

Which instrument is used to measure how fast a liquid or a gas flows inside a tube?

• anemometer

• flow meter

• speedometer

• wind vane

Which graph of speed shows a straight line parallel to the time axis and not covering any distance?

• decreasing speed

• increasing speed

• stationary speed

• uniform speed